External Factor Variable Connectivity Index. - Qian-Nan Hu; Yi-Zeng Liang; Ya-Li Wang; Cheng-Jian Xu; Zhong-Da Zeng; Kai-Tai Fang; Xiao-Ling Peng; Hong Yin (J. Chem. Inf. Comput. Sci., 2003)

Structural Interpretation of a Topological Index. 1. External Factor Variable Connectivity Index (EFVCI). - Qian-Nan Hu; Yi-Zeng Liang; Xiao-Ling Peng; Hong Yin; Kai-Tai Fang (J. Chem. Inf. Model., 2004)

Structural Interpretation of the Topological Index. 2. The Molecular Connectivity Index, the Kappa Index, and the Atom-type E-State Index. - Qian-Nan Hu; Yi-Zeng Liang; Hong Yin; Xiao-Ling Peng; Kai-Tai Fang (J. Chem. Inf. Model., 2004)