@inproceedings{paperid:1052608, author = {Tavakoli, Mostafa and A. R. Ashrafi}, title = {Eccentric Connectivity Index of Graphs}, booktitle = {The 5th Conference & Workshop on Mathematical Chemistry}, year = {2012}, location = {یزد, IRAN}, keywords = {Eccentric connectivity index; tricyclic graph; tetracyclic graph.}, }