@article{1103051408, author = {Schenkman, Eugene}, title = {A generalization of the central elements of a group.}, journal = {Pacific J. Math.}, volume = {3}, number = {4}, year = {1953}, pages = { 501-504}, language = {en}, url = {http://dml.mathdoc.fr/item/1103051408} }
Schenkman, Eugene. A generalization of the central elements of a group.. Pacific J. Math., Tome 3 (1953) no. 4, pp. 501-504. http://gdmltest.u-ga.fr/item/1103051408/