@article{GDZPPN002192381,
title = {On minimal subgroups which are normal.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {281},
year = {1976},
pages = {77-78},
zbl = {0326.20020},
url = {http://dml.mathdoc.fr/item/GDZPPN002192381}
}
Waall, Robert W. van der. On minimal subgroups which are normal.. Journal für die reine und angewandte Mathematik, Tome 281 (1976) pp. 77-78. http://gdmltest.u-ga.fr/item/GDZPPN002192381/