HELFERICH, B For stereochemistry molecules, simple ions and atomic groups in larger molecules. [electronic resource] - Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete 1946 - 666-70 p. digital Publication Type: Journal Article ISSN: 0044-3174 Subjects--Topical Terms: Humans