Résumé:
[1] Koritsanszky, T.; Howard, S.; Richter, T.; Su, Z.; Mallinson, PR; Hansen, NK XD a Computer Program Package, University of Berlin 2003.[2] Hansen & Coppens, Acta Cryst.(1978), A34, 909-921.[3] Coppens, P. X-ray Charge Densities and Chemical Bonding. New York: Oxford, 1997.