Lead
J. Autschbach, T. Ziegler, J. Chem. Phys. 116, 891 (2002)
J. Autschbach, S. Patchkovskii, T. Ziegler, S.J.A. van Gisbergen, and E.J. Baerends, J. Chem. Phys. 117, 581 (2002)
