Coarctate and Möbius: The Helical Orbitals of Allene and Other Cumulenes von Garner, Marc H, Hoffmann, Roald, Rettrup, Sten, Solomon, Gemma C

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Benchmarking Second Order Methods for the Calculation of Vertical Electronic Excitation Energies: Valence and Rydberg States in Polycyclic Aromatic Hydrocarbons von Falden, Heidi H, Falster-Hansen, Kasper R, Bak, Keld L, Rettrup, Sten, Sauer, Stephan P. A

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Coarctate and Möbius: The Helical Orbitals of Allene and Other Cumulenes von Garner, Marc H, Hoffmann, Roald, Rettrup, Sten, Solomon, Gemma C

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Alternative graphical representation of determinantal many-electron states von Rettrup, Sten

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Two-Dimensional Model for Polymer-Based Photovoltaic Cells:  Numerical Simulations of Morphology Effects von Sylvester-Hvid, Kristian O, Rettrup, Sten, Ratner, Mark A

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Two-photon absorption cross sections: an investigation of the accuracy of calculated absolute and relative values von Nielsen, Christian B, Rettrup, Sten, Sauer, Stephan P A

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Two-photon absorption cross sections: An investigationof the accuracy of calculated absolute and relative values von Nielsen, Christian B., Rettrup, Sten, Sauer, Stephan P. A.

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Limited configuration interaction calculation of the optical spectrum for the permanganate ion von Johansen, Helge, Rettrup, Sten

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Representations of the symmetric group generated by projected spin functions: A graphical approach von Rettrup, Sten, Pauncz, Ruben

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An iterative method for calculating several of the extreme eigensolutions of large real non-symmetric matrices von Rettrup, Sten

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Efficient truncation strategies for multi-reference configuration interaction molecular energies and properties von Palmieri, Paolo, Tarroni, Riccardo, Mitrushenkov, Alexander O., Rettrup, Sten

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Spin-free approach for evaluation of electronic matrix elements using character operators of ?N von Friis-Jensen, Britt, Rettrup, Sten

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Direct evaluation of spin representation matrices and ordering of permutation-group elements von Rettrup, Sten

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Hartree–Fock operators to improve virtual orbitals and configuration interaction energies von Palmieri, Paolo, Tarroni, Riccardo, Rettrup, Sten

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Spin-coupled calculations based on projected spin eigenfunctions von Friis-Jensen, Britt, Cooper, David L., Rettrup, Sten

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Indexing scheme for classes of ?N; partitions ofN von Friis-Jensen, Britt, Rettrup, Sten, Sarma, C. R.

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On the evaluation of spin-orbit coupling matrix elements in a spin-adapted basis von La Cour Jansen, Thomas, Rettrup, Sten, Sarma, C. R., Snijders, Jaap G., Palmieri, Paolo

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Spin-free approach for evaluation of electronic matrix elements using character operators of ℒN von Friis-Jensen, Britt, Rettrup, Sten

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Average virtual orbitals in configuration interaction studies with application to the low-lying singlet states of the carbon monoxide and acetone molecules von Mogensen, Benny J., Rettrup, Sten

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A graphical approach to permutation group representations for many-electron systems von Sarma, C. R., Ahsan, M. A. H., Rettrup, Sten

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