1. Y. Alizadeh, A. Iranmanesh, T. Dośolić, Additively weighted Harary index of
some composite graphs, Discrete Math. 313:1 (2013) 26–34.
2. M. V. Diudea, Indices of reciprocal properties or Harary indices, J. Chem. Inf.
Comput. Sci. 37 (1997) 292–299.
3. J. Devillers, A.T. Balaban (eds), Topological Indices and Related Descriptors in
QSAR and QSPR, Gordon and Breach, Amsterdam, 1999.
4. O. Ivanciuc, T. S. Balaban, Design of topological indices. Part 4. Reciprocal
distance matrix, related local vertex invariants and topological indices, J. Math.
Chem. 12 (1993) 309–318.
5. A. Ilić, I. Gutman, Eccentric connectivity index of chemical trees, MATCH
Commun. Math. Comput. Chem. 65 (2011) 731–744.
6. E. Munarini, C. Perelli Cippo, A. Scagliola, N. Zagaglia Salvi, Double graphs,
Discrete Math. 308 (2008) 242–254.
7. D. Plav s ić, S. Nikolić, N. Trinajstić, Z. Mihalić, On the Harary index for the
characterization of chemical graphs, J. Math. Chem. 12 (1993) 235–250.
8. M. Randić, On the characterization of molecular branching, J. Amer. Chem.
Soc. 97 (1975) 6609–6615.
9. V. Sharma, R. Goswami, A. K. Madan, Eccentric connectivity index: A novel
highly discriminating topological descriptor for structure-property and structureactivity
studies, J. Chem. Inf. Comput. Sci. 37 (1997) 273–282.
10. R. Todeschini, V. Consonni, Handbook of molecular descriptors, Wiley−VCH,
Weinheim, (2000) 209–212.
11. N. Trinajstić, S. Nikolić, S. C. Basak, I. Lukovits, Distance indices and their
hyper-counterparts: Intercorrelation and use in the structure-property modeling,
SAR QSAR Environ. Res. 12 (2001) 31–54.
12. D. B. West, Introduction to Graph Theory, Prentice-Hall, Upper Saddle River,
NJ,1996.
13. H. Wiener, Structural determination of the paraffin points, J. Am. Chem. Soc.
69 (1947) 17–20.
)