@article{GDZPPN00240625X, title = {Subnormalit\"at in topologischen Gruppen.}, journal = {Mathematische Zeitschrift}, volume = {114}, year = {1970}, pages = {194-200}, zbl = {0179.32902}, url = {http://dml.mathdoc.fr/item/GDZPPN00240625X} }
Pommer, Helmut. Subnormalität in topologischen Gruppen.. Mathematische Zeitschrift, Tome 114 (1970) pp. 194-200. http://gdmltest.u-ga.fr/item/GDZPPN00240625X/