@article{GDZPPN002402629, title = {On the Class of Sylow Tower Groups.}, journal = {Mathematische Zeitschrift}, volume = {105}, year = {1968}, pages = {393-398}, zbl = {0157.05601}, url = {http://dml.mathdoc.fr/item/GDZPPN002402629} }
Hawkes, Trevor. On the Class of Sylow Tower Groups.. Mathematische Zeitschrift, Tome 105 (1968) pp. 393-398. http://gdmltest.u-ga.fr/item/GDZPPN002402629/