By Pecul Magdalena   Helgaker Trygve   in International Journal of Molecular Sciences

ISSN:1422-0067|4|3|143-157

MDPI‎(2003)‎

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By Bakken Vebjørn   Helgaker Trygve   in Theoretical Chemistry Accounts

ISSN:1432-881X|112|3|124-134

Springer Publishing Company ‎(2004)‎

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By Helgaker Trygve   Jaszunski Michal   Ruud Kenneth   in Molecular Physics

ISSN:1362-3028|91|5|881-890

Taylor & Francis Ltd‎(1997)‎

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By Lutnæs Ola   Helgaker Trygve   Jaszunski Michał   in Molecular Physics

ISSN:1362-3028|106|20|2357-2365

Taylor & Francis Ltd‎(2008)‎

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By Iozzi Maria Francesca   Helgaker Trygve   Uggerud Einar   in Molecular Physics

ISSN:1362-3028|107|23-24|2537-2546

Taylor & Francis Ltd‎(2009)‎

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By Jaszuński Michał   Ruud Kenneth   Helgaker Trygve   in Molecular Physics

ISSN:1362-3028|101|13|1997-2002

Taylor & Francis Ltd‎(2003)‎

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By Bruun Jesper   Helgaker Trygve   Jensen Frank   in Molecular Physics

ISSN:1362-3028|102|23-24|2559-2562

Taylor & Francis Ltd‎(2004)‎

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By Helgaker Trygve   Klopper Wim   Tew David   in Molecular Physics

ISSN:1362-3028|106|16-18|2107-2143

Taylor & Francis Ltd‎(2008)‎

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By Coriani Sonia   Rizzo Antonio   Ruud Kenneth   Helgaker Trygve   in Molecular Physics

ISSN:1362-3028|88|4|931-948

Taylor & Francis Ltd‎(1996)‎

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By Bakken Vebjorn   Helgaker Trygve   Klopper Wim   Ruud Kenneth   in Molecular Physics

ISSN:1362-3028|96|4|653-671

Taylor & Francis Ltd‎(1999)‎

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