Table of Contents

We work long days and late nights to improve the DIRAC code which we distribute free of charge. We therefore ask you to acknowledge any use of the DIRAC program suite that results in published material. We recommend citing the employed version (see below) as well as the general paper:

Trond Saue, Radovan Bast, Andre Severo Pereira Gomes, Hans Jørgen Aagaard Jensen, Lucas Visscher, Ignacio Agustín Aucar, Roberto Di Remigio, Kenneth G. Dyall, Ephraim Eliav, Elke Faßhauer, Timo Fleig, Loıc Halbert, Erik Donovan Hedegård, Benjamin Helmich-Paris, Miroslav Iliaš, Christoph R. Jacob, Stefan Knecht, Jon K Laerdahl, Marta L. Vidal, Malaya K Nayak, Małgorzata Olejniczak, Jógvan Magnus Haugaard Olsen, Markus Pernpointner, Bruno Senjean, Avijit Shee, Ayaki Sunaga, Joost N. P. van Stralen, J. Chem. Phys. 152 (2020) 204104


DIRAC24

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC24 (2024), written by L. Visscher, H. J. Aa. Jensen, R. Bast, A. S. P. Gomes and T. Saue, with contributions from I. A. Aucar, V. Bakken, J. Brandejs, C. Chibueze, J. Creutzberg, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, L. Halbert, E. D. Hedegård, T. Helgaker, B. Helmich-Paris, J. Henriksson, M. van Horn, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, N. H. List, H. S. Nataraj, M. K. Nayak, P. Norman, A. Nyvang, M. Olejniczak, J. Olsen, J. M. H. Olsen, A. Papadopoulos, Y. C. Park, J. K. Pedersen, M. Pernpointner, J. V. Pototschnig, R. Di Remigio, M. Repisky, K. Ruud, P. Sałek, B. Schimmelpfennig, B. Senjean, A. Shee, J. Sikkema, A. Sunaga, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, M. L. Vidal, S. Villaume, O. Visser, T. Winther, S. Yamamoto and X. Yuan (available at https://doi.org/10.5281/zenodo.10680560, see also https://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC24,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC24} (2024),
      written by L.~Visscher, H.~J.~{\relax Aa}.~Jensen, R.~Bast, A.~S.~P.~Gomes and T.~Saue,
      with contributions from I.~A.~Aucar, V.~Bakken, J.~Brandejs, C.~Chibueze, J.~Creutzberg, K.~G.~Dyall, 
      S.~Dubillard, U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, 
      L.~Halbert, E.~D.~Hedeg{\aa}rd, T.~Helgaker, B.~Helmich--Paris, J.~Henriksson, M.~van~Horn, 
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, 
      Y.~S.~Lee, N.~H.~List, H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, A.~Nyvang, G.~Olejniczak, 
      J.~Olsen, J.~M.~H.~Olsen, A.~Papadopoulos, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner,
      J.~V.~Pototschnig, R.~di~Remigio, M.~Repisky, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, 
      B.~Senjean, A.~Shee, J.~Sikkema, A.~Sunaga, A.~J.~Thorvaldsen, J.~Thyssen, 
      J.~van~Stralen, M.~L.~Vidal, S.~Villaume, O.~Visser, T.~Winther, S.~Yamamoto and X.~Yuan
      (available at \url{https://doi.org/110.5281/zenodo.10680560}, 
      see also  \url{https://www.diracprogram.org})"}

DIRAC23

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC23 (2023), written by R. Bast, A. S. P. Gomes, T. Saue and L. Visscher and H. J. Aa. Jensen, with contributions from I. A. Aucar, V. Bakken, C. Chibueze, J. Creutzberg, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, L. Halbert, E. D. Hedegård, T. Helgaker, B. Helmich-Paris, J. Henriksson, M. van Horn, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, N. H. List, H. S. Nataraj, M. K. Nayak, P. Norman, A. Nyvang, G. Olejniczak, J. Olsen, J. M. H. Olsen, A. Papadopoulos, Y. C. Park, J. K. Pedersen, M. Pernpointner, J. V. Pototschnig, R. Di Remigio, M. Repisky, K. Ruud, P. Sałek, B. Schimmelpfennig, B. Senjean, A. Shee, J. Sikkema, A. Sunaga, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, M. L. Vidal, S. Villaume, O. Visser, T. Winther, S. Yamamoto and X. Yuan (available at https://doi.org/10.5281/zenodo.7670749, see also https://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC23,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC23} (2023),
      written by R.~Bast, A.~S.~P.~Gomes, T.~Saue and L.~Visscher and H.~J.~{\relax Aa}.~Jensen,
      with contributions from I.~A.~Aucar, V.~Bakken, C.~Chibueze, J.~Creutzberg, K.~G.~Dyall, 
      S.~Dubillard, U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, 
      L.~Halbert, E.~D.~Hedeg{\aa}rd, T.~Helgaker, B.~Helmich--Paris, J.~Henriksson, M.~van~Horn, 
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, 
      Y.~S.~Lee, N.~H.~List, H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, A.~Nyvang, G.~Olejniczak, 
      J.~Olsen, J.~M.~H.~Olsen, A.~Papadopoulos, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner,
      J.~V.~Pototschnig, R.~di~Remigio, M.~Repisky, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, 
      B.~Senjean, A.~Shee, J.~Sikkema, A.~Sunaga, A.~J.~Thorvaldsen, J.~Thyssen, 
      J.~van~Stralen, M.~L.~Vidal, S.~Villaume, O.~Visser, T.~Winther, S.~Yamamoto and X.~Yuan
      (available at \url{https://doi.org/10.5281/zenodo.7670749}, 
      see also  \url{https://www.diracprogram.org})"}

DIRAC22

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC22 (2022), written by H. J. Aa. Jensen, R. Bast, A. S. P. Gomes, T. Saue and L. Visscher, with contributions from I. A. Aucar, V. Bakken, C. Chibueze, J. Creutzberg, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, L. Halbert, E. D. Hedegård, T. Helgaker, B. Helmich-Paris, J. Henriksson, M. van Horn, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, N. H. List, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, J. M. H. Olsen, A. Papadopoulos, Y. C. Park, J. K. Pedersen, M. Pernpointner, J. V. Pototschnig, R. Di Remigio, M. Repisky, K. Ruud, P. Sałek, B. Schimmelpfennig, B. Senjean, A. Shee, J. Sikkema, A. Sunaga, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, M. L. Vidal, S. Villaume, O. Visser, T. Winther, S. Yamamoto and X. Yuan (available at http://dx.doi.org/10.5281/zenodo.6010450, see also http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC22,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC22} (2022),
      written by H.~J.~{\relax Aa}.~Jensen, R.~Bast, A.~S.~P.~Gomes, T.~Saue and L.~Visscher,   
      with contributions from I.~A.~Aucar, V.~Bakken, C.~Chibueze, J.~Creutzberg, K.~G.~Dyall, 
      S.~Dubillard, U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, 
      L.~Halbert, E.~D.~Hedeg{\aa}rd, T.~Helgaker, B.~Helmich--Paris, J.~Henriksson, M.~van~Horn, 
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, 
      Y.~S.~Lee, N.~H.~List, H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, G.~Olejniczak, 
      J.~Olsen, J.~M.~H.~Olsen, A.~Papadopoulos, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner,
      J.~V.~Pototschnig, R.~di~Remigio, M.~Repisky, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, 
      B.~Senjean, A.~Shee, J.~Sikkema, A.~Sunaga, A.~J.~Thorvaldsen, J.~Thyssen, 
      J.~van~Stralen, M.~L.~Vidal, S.~Villaume, O.~Visser, T.~Winther, S.~Yamamoto and X.~Yuan
      (available at \url{http://dx.doi.org/10.5281/zenodo.6010450}, 
      see also  \url{http://www.diracprogram.org})"}

DIRAC21

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC21 (2021), written by R. Bast, A. S. P. Gomes, T. Saue, L. Visscher, and H. J. Aa. Jensen, with contributions from I. A. Aucar, V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, L. Halbert, E. D. Hedegård, T. Helgaker, B. Helmich-Paris, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, N. H. List, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, J. M. H. Olsen, A. Papadopoulos, Y. C. Park, J. K. Pedersen, M. Pernpointner, J. V. Pototschnig, R. Di Remigio, M. Repisky, K. Ruud, P. Sałek, B. Schimmelpfennig, B. Senjean, A. Shee, J. Sikkema, A. Sunaga, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, M. L. Vidal, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (available at http://dx.doi.org/10.5281/zenodo.4836496, see also http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC21,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC21} (2021),
      written by R.~Bast, A.~S.~P.~Gomes, T.~Saue, L.~Visscher, and H.~J.~{\relax Aa}.~Jensen,  
      with contributions from I.~A.~Aucar, V.~Bakken, K.~G.~Dyall, S.~Dubillard, U.~Ekstr{\"o}m, 
      E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, L.~Halbert, 
      E.~D.~Hedeg{\aa}rd, T.~Helgaker, B.~Helmich--Paris, J.~Henriksson, M.~Ilia{\v{s}},  
      Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, 
      Y.~S.~Lee, N.~H.~List, H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, G.~Olejniczak, 
      J.~Olsen, J.~M.~H.~Olsen, A.~Papadopoulos, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner,
      J.~V.~Pototschnig, R.~di~Remigio, M.~Repisky, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, 
      B.~Senjean, A.~Shee, J.~Sikkema, A.~Sunaga, A.~J.~Thorvaldsen, J.~Thyssen, 
      J.~van~Stralen, M.~L.~Vidal, S.~Villaume, O.~Visser, T.~Winther, and S.~Yamamoto 
      (available at \url{http://dx.doi.org/10.5281/zenodo.4836496}, 
      see also  \url{http://www.diracprogram.org})"}

DIRAC19

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC19 (2019), written by A. S. P. Gomes, T. Saue, L. Visscher, H. J. Aa. Jensen, and R. Bast, with contributions from I. A. Aucar, V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, L. Halbert, E. D. Hedegård, T. Helgaker, B. Helmich-Paris, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, J. M. H. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, R. Di Remigio, K. Ruud, P. Sałek, B. Schimmelpfennig, B. Senjean, A. Shee, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, M. L. Vidal, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (available at http://dx.doi.org/10.5281/zenodo.3572669, see also http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC19,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC19} (2019),
      written by A.~S.~P.~Gomes, T.~Saue, L.~Visscher, H.~J.~{\relax Aa}.~Jensen, and R.~Bast, 
      with contributions from I.~A.~Aucar, V.~Bakken, K.~G.~Dyall, S.~Dubillard, U.~Ekstr{\"o}m, 
      E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, L.~Halbert, 
      E.~D.~Hedeg{\aa}rd, B.~Heimlich--Paris, T.~Helgaker, J.~Henriksson, M.~Ilia{\v{s}},  
      Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, 
      Y.~S.~Lee, H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, G.~Olejniczak, J.~Olsen, J.~M.~H.~Olsen,
      Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner, R.~di~Remigio, K.~Ruud, P.~Sa{\l}ek, 
      B.~Schimmelpfennig, B.~Senjean, A.~Shee, J.~Sikkema, A.~J.~Thorvaldsen, J.~Thyssen, 
      J.~van~Stralen, M.~L.~Vidal, S.~Villaume, O.~Visser, T.~Winther, and S.~Yamamoto 
      (available at \url{http://dx.doi.org/10.5281/zenodo.3572669}, 
      see also  \url{http://www.diracprogram.org})"}

DIRAC18

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC18 (2018), written by T. Saue, L. Visscher, H. J. Aa. Jensen, and R. Bast, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, A. S. P. Gomes, E. D. Hedegård, T. Helgaker, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, J. M. H. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, R. Di Remigio, K. Ruud, P. Sałek, B. Schimmelpfennig, A. Shee, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (available at https://doi.org/10.5281/zenodo.2253986, see also http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC18,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC18} (2018),
      written by T.~Saue, L.~Visscher, H.~J.~{\relax Aa}.~Jensen, and R.~Bast, 
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard, U.~Ekstr{\"o}m, 
      E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, A.~S.~P.~Gomes, 
      E.~D.~Hedeg{\aa}rd, T.~Helgaker, J.~Henriksson, M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, 
      S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, Y.~S.~Lee, 
      H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, G.~Olejniczak, J.~Olsen, J.~M.~H.~Olsen, Y.~C.~Park,   
      J.~K.~Pedersen, M.~Pernpointner, R.~di~Remigio, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, 
      A.~Shee, J.~Sikkema, A.~J.~Thorvaldsen, J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, 
      T.~Winther, and S.~Yamamoto (available at \url{https://doi.org/10.5281/zenodo.2253986}, 
      see also  \url{http://www.diracprogram.org})"}

DIRAC17

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC17 (2017), written by L. Visscher, H. J. Aa. Jensen, R. Bast, and T. Saue, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, A. S. P. Gomes, E. D. Hedegård, T. Helgaker, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, J. M. H. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, R. Di Remigio, K. Ruud, P. Sałek, B. Schimmelpfennig, A. Shee, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC17,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC17} (2017),
      written by L.~Visscher, H.~J.~{\relax Aa}.~Jensen, R.~Bast, and T.~Saue,
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard, U.~Ekstr{\"o}m, 
      E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, A.~S.~P.~Gomes, 
      E.~D.~Hedeg{\aa}rd, T.~Helgaker, J.~Henriksson, M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, 
      S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, Y.~S.~Lee, 
      H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, G.~Olejniczak, J.~Olsen, J.~M.~H.~Olsen, Y.~C.~Park,   
      J.~K.~Pedersen, M.~Pernpointner, R.~di~Remigio, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, 
      A.~Shee, J.~Sikkema, A.~J.~Thorvaldsen, J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, 
      T.~Winther, and S.~Yamamoto (see \url{http://www.diracprogram.org})"}

DIRAC16

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC16 (2016), written by H. J. Aa. Jensen, R. Bast, T. Saue, and L. Visscher, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, J. K. Lærdahl, C. V. Larsen, Y. S. Lee, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, R. Di Remigio, K. Ruud, P. Sałek, B. Schimmelpfennig, A. Shee, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC16,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC16} (2016),
      written by H.~J.~{\relax Aa}.~Jensen, R.~Bast, T.~Saue, and L.~Visscher,
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard, U.~Ekstr{\"o}m, 
      E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard, A.~S.~P.~Gomes, 
      T.~Helgaker, J.~Henriksson, M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, 
      S.~Komorovsk{\'y}, O.~Kullie, J.~K.~L{\ae}rdahl, C.~V.~Larsen, Y.~S.~Lee, 
      H.~S.~Nataraj, M.~K.~Nayak, P.~Norman, G.~Olejniczak, J.~Olsen, Y.~C.~Park, J.~K.~Pedersen, 
      M.~Pernpointner, R.~di~Remigio, K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, A.~Shee, J.~Sikkema, 
      A.~J.~Thorvaldsen, J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, T.~Winther,
      and S.~Yamamoto (see \url{http://www.diracprogram.org})"}

DIRAC15

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC15 (2015), written by H. J. Aa. Jensen, R. Bast, T. Saue, and L. Visscher, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekstroem, E. Eliav, T. Enevoldsen, E. Fasshauer, T. Fleig, O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. Henriksson, M. Ilias, Ch. R. Jacob, S. Knecht, S. Komorovsky, O. Kullie, J. K. Laerdahl, C. V. Larsen, Y. S. Lee, H. S. Nataraj, M. K. Nayak, P. Norman, G. Olejniczak, J. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, R. Di Remigio, K. Ruud, P. Salek, B. Schimmelpfennig, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC15,
      note = "DIRAC, a relativistic ab initio electronic structure program,
      Release DIRAC15 (2015),
      written by R. Bast, T. Saue, L. Visscher, and H. J. Aa. Jensen,
      with contributions from V. Bakken, K. G. Dyall, S. Dubillard,
      U. Ekstroem, E. Eliav, T. Enevoldsen, E. Fasshauer, T. Fleig,
      O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. Henriksson, M. Ilias,
      Ch. R. Jacob, S. Knecht, S. Komorovsky, O. Kullie, J. K. Laerdahl,
      C. V. Larsen, Y. S. Lee, H. S. Nataraj, M. K. Nayak, P. Norman,
      G. Olejniczak, J. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner,
      R. Di Remigio, K. Ruud, P. Salek, B. Schimmelpfennig, J. Sikkema,
      A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser,
      T. Winther, and S. Yamamoto (see http://www.diracprogram.org)."}

DIRAC14

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC14 (2014), written by T. Saue, L. Visscher, H. J. Aa. Jensen, and R. Bast, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, C. V. Larsen, J. K. Lærdahl, Y. S. Lee, H. S. Nataraj, P. Norman, G. Olejniczak, J. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, R. di Remigio, K. Ruud, P. Sałek, B. Schimmelpfennig, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC14,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC14} (2014),
      written by T.~Saue, L.~Visscher, H.~J.~{\relax Aa}.~Jensen, and R.~Bast.
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard,
      U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard,
      A.~S.~P.~Gomes, T.~Helgaker, J.~K.~L{\ae}rdahl, Y.~S.~Lee, J.~Henriksson,
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, C.~V.~Larsen, H.~S.~Nataraj,
      P.~Norman, G.~Olejniczak, J.~Olsen, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner, R.~di~Remigio,     
      K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, J.~Sikkema, A.~J.~Thorvaldsen,
      J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, T.~Winther,
      and S.~Yamamoto (see \url{http://www.diracprogram.org})"}

DIRAC13

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC13 (2013), written by L. Visscher, H. J. Aa. Jensen, R. Bast, and T. Saue, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, E. Faßhauer, T. Fleig, O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. K. Lærdahl, Y. S. Lee, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, C. V. Larsen, H. S. Nataraj, P. Norman, G. Olejniczak, J. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, K. Ruud, P. Sałek, B. Schimmelpfennig, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC13,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC13} (2013),
      written by L.~Visscher, H.~J.~{\relax Aa}.~Jensen, R.~Bast, and T.~Saue,
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard,
      U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, E.~Fa{\ss}hauer, T.~Fleig, O.~Fossgaard,
      A.~S.~P.~Gomes, T.~Helgaker, J.~K.~L{\ae}rdahl, Y.~S.~Lee, J.~Henriksson,
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, C.~V.~Larsen, H.~S.~Nataraj,
      P.~Norman, G.~Olejniczak, J.~Olsen, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner,      
      K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, J.~Sikkema, A.~J.~Thorvaldsen,
      J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, T.~Winther,
      and S.~Yamamoto
      (see http://www.diracprogram.org)"
     }

DIRAC12

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC12 (2012), written by H. J. Aa. Jensen, R. Bast, T. Saue, and L. Visscher, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, T. Fleig, O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. K. Lærdahl, Y. S. Lee, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, S. Komorovský, O. Kullie, C. V. Larsen, H. S. Nataraj, P. Norman, G. Olejniczak, J. Olsen, Y. C. Park, J. K. Pedersen, M. Pernpointner, K. Ruud, P. Sałek, B. Schimmelpfennig, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://www.diracprogram.org).

bibtex entry:

@Misc{DIRAC12,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC12} (2012),
      written by H.~J.~{\relax Aa}.~Jensen, R.~Bast, T.~Saue, and L.~Visscher,
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard,
      U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, T.~Fleig, O.~Fossgaard,
      A.~S.~P.~Gomes, T.~Helgaker, J.~K.~L{\ae}rdahl, Y.~S.~Lee, J.~Henriksson,
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, S.~Komorovsk{\'y}, O.~Kullie, C.~V.~Larsen, H.~S.~Nataraj,
      P.~Norman, G.~Olejniczak, J.~Olsen, Y.~C.~Park, J.~K.~Pedersen, M.~Pernpointner,      
      K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, J.~Sikkema, A.~J.~Thorvaldsen,
      J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, T.~Winther,
      and S.~Yamamoto
      (see http://www.diracprogram.org)"
     }

DIRAC11

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC11 (2011), written by R. Bast, H. J. Aa. Jensen, T. Saue, and L. Visscher, with contributions from V. Bakken, K. G. Dyall, S. Dubillard, U. Ekström, E. Eliav, T. Enevoldsen, T. Fleig, O. Fossgaard, A. S. P. Gomes, T. Helgaker, J. K. Lærdahl, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, C. V. Larsen, H. S. Nataraj, P. Norman, G. Olejniczak, J. Olsen, J. K. Pedersen, M. Pernpointner, K. Ruud, P. Sałek, B. Schimmelpfennig, J. Sikkema, A. J. Thorvaldsen, J. Thyssen, J. van Stralen, S. Villaume, O. Visser, T. Winther, and S. Yamamoto (see http://dirac.chem.vu.nl).

bibtex entry:

@Misc{DIRAC11,
      note = "{DIRAC}, a relativistic ab initio electronic structure program,
      Release {DIRAC11} (2011),
      written by R.~Bast, H.~J.~{\relax Aa}.~Jensen, T.~Saue, and L.~Visscher,
      with contributions from V.~Bakken, K.~G.~Dyall, S.~Dubillard,
      U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, T.~Fleig, O.~Fossgaard,
      A.~S.~P.~Gomes, T.~Helgaker, J.~K.~L{\ae}rdahl, J.~Henriksson,
      M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, C.~V.~Larsen, H.~S.~Nataraj,
      P.~Norman, G.~Olejniczak, J.~Olsen, J.~K.~Pedersen, M.~Pernpointner,
      K.~Ruud, P.~Sa{\l}ek, B.~Schimmelpfennig, J.~Sikkema, A.~J.~Thorvaldsen,
      J.~Thyssen, J.~van~Stralen, S.~Villaume, O.~Visser, T.~Winther,
      and S.~Yamamoto
      (see http://dirac.chem.vu.nl)"
     }

DIRAC10

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC10 (2010), written by T. Saue, L. Visscher and H. J. Aa. Jensen, with new contributions from R. Bast, K. G. Dyall, U. Ekström, E. Eliav, T. Enevoldsen, T. Fleig, A. S. P. Gomes, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, H. S. Nataraj, P. Norman, J. Olsen, M. Pernpointner, K. Ruud, B. Schimmelpfennig, J. Sikkema, A. Thorvaldsen, J. Thyssen, S. Villaume, and S. Yamamoto (see http://dirac.chem.vu.nl).

bibtex entry:

@Misc{DIRAC10,
      note = "{DIRAC}, a relativistic ab initio electronic structure program, Release {DIRAC10} (2010),
      written by T.~Saue, L.~Visscher and H.~J.~{\relax Aa}.~Jensen,
      with contributions from R.~Bast, K.~G.~Dyall,
      U.~Ekstr{\"o}m, E.~Eliav, T.~Enevoldsen, T.~Fleig, A.~S.~P.~Gomes,
      J.~Henriksson, M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, H.~S.~Nataraj, P.~Norman,
      J.~Olsen, M.~Pernpointner, K.~Ruud, B.~Schimmelpfennig, J.~Sikkema,
      A.~Thorvaldsen, J.~Thyssen, S.~Villaume, and S.~Yamamoto
      (see http://dirac.chem.vu.nl)"
     }

DIRAC08

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC08 (2008), written by L. Visscher, H. J. Aa. Jensen, and T. Saue, with new contributions from R. Bast, S. Dubillard, K. G. Dyall, U. Ekström, E. Eliav, T. Fleig, A. S. P. Gomes, T. U. Helgaker, J. Henriksson, M. Iliaš, Ch. R. Jacob, S. Knecht, P. Norman, J. Olsen, M. Pernpointner, K. Ruud, P. Sałek, and J. Sikkema (see http://dirac.chem.sdu.dk).

bibtex entry:

@Misc{DIRAC08,
      note = "{DIRAC}, a relativistic ab initio electronic structure program, Release {DIRAC08} (2008),
      written by L.~Visscher, H.~J.~{\relax Aa}.~Jensen, and T.~Saue,
      with new contributions from R.~Bast, S.~Dubillard, K.~G.~Dyall,
      U.~Ekstr{\"o}m, E.~Eliav, T.~Fleig, A.~S.~P.~Gomes, T.~U.~Helgaker,
      J.~Henriksson, M.~Ilia{\v{s}}, Ch.~R.~Jacob, S.~Knecht, P.~Norman,
      J.~Olsen, M.~Pernpointner, K.~Ruud, P.~Sa{\l}ek, and J.~Sikkema
      (see http://dirac.chem.sdu.dk)"
     }

DIRAC04

DIRAC, a relativistic ab initio electronic structure program, Release DIRAC04 (2004), written by H. J. Aa. Jensen, T. Saue, and L. Visscher, with contributions from V. Bakken, E. Eliav, T. Enevoldsen, T. Fleig, O. Fossgaard, T. Helgaker, J. Lærdahl, C. V. Larsen, P. Norman, J. Olsen, M. Pernpointner, J. K. Pedersen, K. Ruud, P. Sałek, J. N. P. van Stralen, J. Thyssen, O. Visser, and T. Winther (see http://dirac.chem.sdu.dk).

bibtex entry:

@Misc{DIRAC04,
      note = "{DIRAC}, a relativistic ab initio electronic structure program, Release {DIRAC04.0} (2004),
      written by H.~J.~{\relax Aa}.~Jensen, T.~Saue, and L.~Visscher,
      with contributions from V.~Bakken, E.~Eliav, T.~Enevoldsen,
      T.~Fleig, O.~Fossgaard, T.~U.~Helgaker,
      J.~L{\ae}rdahl, C.~V.~Larsen, P.~Norman, J.~Olsen,
      M.~Pernpointner, J.~K.~Pedersen, K.~Ruud, P.~Sa{\l}ek,
      J.~N.~P.~van Stralen, J.~Thyssen, O.~Visser, and T.~Winther
      (see http://dirac.chem.sdu.dk)"
     }