@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}, year = {1995}, volume = {45}, number = {4}, mrnumber = {1387048}, zbl = {0853.05032}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1995_45_4_a0/} }