Volume 31 (1994)

Editorial

Mathematical Methods

W. Haesselbarth: Cluster-of-Variables Decompostion, a New Mathematical Tool for Analyzing Structure-Property Relations, pp. 7-21

Contributions

S. J. Cyvin, J. Brunvoll, B. N. Cyvin: Number and Forms of Tetracyclic Polygonal Pyrene Isomers, pp. 25-36
A. Dietz, B. Gruber, I. Ugi: Algorithmische Behandlung stereochemischer Problemstellungen, pp. 37-87
S. B. Elk: Defining Stereochemistry as a Function of Distance, pp. 89-97
I. Gutman: A Regularity for the Total pi-Electron Energy of Phenylenes, pp. 99-110
P. Hansen, M. Zheng: Recursive and Explicit Formulae for the Degree of Freedom of Cata-Condensed Benzenoid Hydrocarbons, pp. 111-122
P. E. John: Die Berechnung des Wiener-Index fuer einfache Polybaume, pp.123-132
I. Lukovits, I. Gutman: Edge-Decomposition of the Wiener Number, pp. 133-144
W. He, W. He, Y. He: Normal Benzoids Are Reducible, pp. 145-152
T. Wieland: Erzeugung, Abzaehlung und Konstruktion von Stereoisomeren, pp. 153-203
H. Zhu, D. J. Klein: Conjugated Circuits for Polymers, pp. 205-224

Computer Corner