@article{GDZPPN002409844,
title = {On Equivalence of Finite Group Extensions.},
journal = {Mathematische Zeitschrift},
volume = {121},
year = {1971},
pages = {191-200},
zbl = {0224.20023},
url = {http://dml.mathdoc.fr/item/GDZPPN002409844}
}
Zassenhaus, Hans; Johnson, Charles E. On Equivalence of Finite Group Extensions.. Mathematische Zeitschrift, Tome 121 (1971) pp. 191-200. http://gdmltest.u-ga.fr/item/GDZPPN002409844/