Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1995__45_4_a0, author = {Gutman, Ivan and Yeh, Yeong-Nan}, title = {The sum of all distances in bipartite graphs}, journal = {Mathematica slovaca}, pages = {327--334}, publisher = {mathdoc}, volume = {45}, number = {4}, year = {1995}, mrnumber = {1387048}, zbl = {0853.05032}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1995__45_4_a0/} }
Gutman, Ivan; Yeh, Yeong-Nan. The sum of all distances in bipartite graphs. Mathematica slovaca, Tome 45 (1995) no. 4, pp. 327-334. http://geodesic.mathdoc.fr/item/MASLO_1995__45_4_a0/