@article{GDZPPN002418436,
title = {Characters of Groups with Normal Extra Special Subgroups.},
journal = {Mathematische Zeitschrift},
volume = {147},
year = {1976},
pages = {1-32},
zbl = {0325.20005},
url = {http://dml.mathdoc.fr/item/GDZPPN002418436}
}
Dade, Everett C. Characters of Groups with Normal Extra Special Subgroups.. Mathematische Zeitschrift, Tome 147 (1976) pp. 1-32. http://gdmltest.u-ga.fr/item/GDZPPN002418436/