@article{CM_1935__1__254_0,
author = {Baer, Reinhold},
title = {Der Kern, eine charakteristische Untergruppe},
journal = {Compositio Mathematica},
volume = {2},
year = {1935},
pages = {254-283},
zbl = {0009.15504},
language = {de},
url = {http://dml.mathdoc.fr/item/CM_1935__1__254_0}
}
Baer, Reinhold. Der Kern, eine charakteristische Untergruppe. Compositio Mathematica, Tome 2 (1935) pp. 254-283. http://gdmltest.u-ga.fr/item/CM_1935__1__254_0/