1. Qualitative thinking in the age of modern computational chemistry—or what Lionel Salem knows
2. CODESSA (Comprehensive Descriptors for Structures and Statistical Analysis) reports most of the descriptors designed by 1995. Katritzky, A. R., Lobanov, V., Karelson, M., Eds.; CODESSA (Comprehensive Descriptors for structural and Statistical Analysis), University of Florida: Gainesville, FL.
3. Trinajstić, N.Chemical Graph Theory; CRC Press: Boca Raton, FL, 1992; Chapter 10, pp 225−273.
4. Balaban, A. T.Historical developments of topological indices,in: Topological Indices and Related Descriptors in QSAR and QSPR; Devillers, J., Balaban, A. T., Eds.; Gordon and Breach: Amsterdam, The Netherlands, 1999; pp 403−453.