Citation: M. Kollwitz et al., NON-ABELIAN POINT GROUP SYMMETRY IN DIRECT 2ND-ORDER MANY-BODY PERTURBATION-THEORY CALCULATIONS OF NMR CHEMICAL-SHIFTS, The Journal of chemical physics, 108(20), 1998, pp. 8295-8301
Citation: M. Kollwitz et J. Gauss, A DIRECT IMPLEMENTATION OF THE GIAO-MBPT(2) METHOD FOR CALCULATING NMR CHEMICAL-SHIFTS - APPLICATION TO THE NAPHTHALENIUM AND ANTHRACENIUM IONS, Chemical physics letters, 260(5-6), 1996, pp. 639-646
Citation: M. Kollwitz et H. Winter, AN RPA-LDA TREATMENT OF DENSITY-FLUCTUATIONS IN THE ALKALI-METALS NA AND CS, Journal of physics. Condensed matter, 7(16), 1995, pp. 3153-3171