@article{03700960, title = {A lower bound on the number of finite simple groups.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {3}, year = {1980}, pages = {797-799}, doi = {10.1155/S0161171280000592}, zbl = {0448.10043}, language = {en}, url = {http://dml.mathdoc.fr/item/03700960} }
Mays, Michael E. A lower bound on the number of finite simple groups.. International Journal of Mathematics and Mathematical Sciences, Tome 3 (1980) pp. 797-799. doi : 10.1155/S0161171280000592. http://gdmltest.u-ga.fr/item/03700960/