@article{04108809, title = {On the number of cut-vertices in a graph.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {12}, year = {1989}, pages = {305-308}, doi = {10.1155/S0161171289000359}, zbl = {0677.05047}, language = {en}, url = {http://dml.mathdoc.fr/item/04108809} }
Hopkins, Glenn; Staton, William. On the number of cut-vertices in a graph.. International Journal of Mathematics and Mathematical Sciences, Tome 12 (1989) pp. 305-308. doi : 10.1155/S0161171289000359. http://gdmltest.u-ga.fr/item/04108809/