@article{GDZPPN002392038,
title = {Subnormale H\"ullen in Permutationsgruppen.},
journal = {Mathematische Zeitschrift},
volume = {78},
year = {1962},
pages = {381-388},
zbl = {0104.24901},
url = {http://dml.mathdoc.fr/item/GDZPPN002392038}
}
Wielandt, Helmut. Subnormale Hüllen in Permutationsgruppen.. Mathematische Zeitschrift, Tome 78 (1962) pp. 381-388. http://gdmltest.u-ga.fr/item/GDZPPN002392038/