1. Kekule Structures in Benzenoid Hydrocarbons;Cyvin,1988
2. Introduction to the Theory of Benzenoid Hydrocarbons;Gutman,1989
3. Theory of Coronoid Hydrocarbons;Cyvin,1989
4. Chemical Graph Theory;Trinajstic,1992
5. Computer Generation for Certain Classes of Molecules;Knop,1985