@article{GDZPPN002054728, title = {On finite groups which are necessarily commutative.}, journal = {Commentarii mathematici Helvetici}, volume = {20}, year = {1947}, pages = {223-224}, zbl = {0035.01502}, url = {http://dml.mathdoc.fr/item/GDZPPN002054728} }
Szép, J. On finite groups which are necessarily commutative.. Commentarii mathematici Helvetici, Tome 20 (1947) pp. 223-224. http://gdmltest.u-ga.fr/item/GDZPPN002054728/