About BOBERG F
About Technischen Univ. Clausthal, Clausthal-Zellerfeld
About NINK G
About Technischen Univ. Clausthal, Clausthal-Zellerfeld
About BRUCHMANN B
About Technischen Univ. Clausthal, Clausthal-Zellerfeld
About GARMING A
About Technischen Univ. Clausthal, Clausthal-Zellerfeld
About Phosphorus, Sulfur and Silicon and the Related Elements
About pyridinium
About benzenesulfonamides
About Pyridines
About Gevmetry of molecules in general