@article{MOMA_1979__87_177915,
     author = {Frieder K\"ummich},
     title = {Quasinormalit\"at in topologischen {Gruppen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {241--246},
     publisher = {mathdoc},
     volume = {87},
     year = {1979},
     zbl = {0408.22010},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1979__87_177915/}
}