@article{GDZPPN00239216X, title = {Wreath products and varieties of groups.}, journal = {Mathematische Zeitschrift}, volume = {78}, year = {1962}, pages = {44-62}, zbl = {0105.02003}, url = {http://dml.mathdoc.fr/item/GDZPPN00239216X} }
Neumann, B.H.; Neumann, Hanna; Neumann, Peter M. Wreath products and varieties of groups.. Mathematische Zeitschrift, Tome 78 (1962) pp. 44-62. http://gdmltest.u-ga.fr/item/GDZPPN00239216X/