@article{1103044241, author = {Harary, Frank}, title = {On the number of dissimilar line-subgraphs of a given graph.}, journal = {Pacific J. Math.}, volume = {6}, number = {4}, year = {1956}, pages = { 57-64}, language = {en}, url = {http://dml.mathdoc.fr/item/1103044241} }
Harary, Frank. On the number of dissimilar line-subgraphs of a given graph.. Pacific J. Math., Tome 6 (1956) no. 4, pp. 57-64. http://gdmltest.u-ga.fr/item/1103044241/