1. Molecular Connectivity in Chemistry and Drug Research;Kier,1976
2. Computer Assisted Studies of Chemical Structure and Biological Function;Stuper,1979
3. Topological Indexes in Organic Chemistry;Stankevich;Usp. Khim,1988
4. Molecular Connectivity in Structure-Activity Analysis;Kier,1986
5. The Graph-like State of Matter;Gordon;J. Chem. Soc. Faraday II,1973