1. Mathematical Concepts in Organic Chemistry;Gutman,1986
2. Handbook of Molecular Descriptors;Todeschini,2000
3. Structural determination of paraffin boiling points;Wiener;J. Am. Chem. Soc.,1947
4. A formula for the Wiener number of trees and its extension to graphs containing cycles;Gutman;Graph Theory Notes N. Y.,1994
5. The Szeged index — A success story;Gutman;Graph Theory Notes N. Y.,1998