@article{GDZPPN002231670, title = {Regular Orbits fo Hall ...-subgroups.}, journal = {Manuscripta mathematica}, volume = {70}, year = {1991}, pages = {255-260}, zbl = {0724.20010}, url = {http://dml.mathdoc.fr/item/GDZPPN002231670} }
Espuelas, Alberto; Navarro, Gabriel. Regular Orbits fo Hall ...-subgroups.. Manuscripta mathematica, Tome 70 (1991) pp. 255-260. http://gdmltest.u-ga.fr/item/GDZPPN002231670/