@article{urn:eudml:doc:43795, title = {Fischer classes in finite groups.}, journal = {Collectanea Mathematica}, volume = {27}, year = {1976}, pages = {109-117}, zbl = {0354.20021}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:43795} }
Martínez Verduch, J. R. Fischer classes in finite groups.. Collectanea Mathematica, Tome 27 (1976) pp. 109-117. http://gdmltest.u-ga.fr/item/urn:eudml:doc:43795/