@article{GDZPPN002182092,
title = {Characters and systems of subgroups.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {222},
year = {1966},
pages = {147-163},
zbl = {0244.20008},
url = {http://dml.mathdoc.fr/item/GDZPPN002182092}
}
Kronstein, Karl. Characters and systems of subgroups.. Journal für die reine und angewandte Mathematik, Tome 222 (1966) pp. 147-163. http://gdmltest.u-ga.fr/item/GDZPPN002182092/