@article{CM_1935__2__247_0, author = {Baer, Reinhold}, title = {Zentrum und {Kern} von {Gruppen} mit {Elementen} unendlicher {Ordnung}}, journal = {Compositio Mathematica}, pages = {247--249}, publisher = {Johnson Reprint Corporation}, volume = {2}, year = {1935}, zbl = {0017.15403}, language = {de}, url = {http://archive.numdam.org/item/CM_1935__2__247_0/} }