Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DA_1998_5_2_a2, author = {A. A. Dobrynin and I. Gutman}, title = {The {Wiener} index for trees and graphs of hexagonal systems}, journal = {Diskretnyj analiz i issledovanie operacij}, pages = {34--60}, publisher = {mathdoc}, volume = {5}, number = {2}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DA_1998_5_2_a2/} }
A. A. Dobrynin; I. Gutman. The Wiener index for trees and graphs of hexagonal systems. Diskretnyj analiz i issledovanie operacij, Tome 5 (1998) no. 2, pp. 34-60. http://geodesic.mathdoc.fr/item/DA_1998_5_2_a2/