@article{GDZPPN002392216, title = {Embedding group amalgams in wreath products.}, journal = {Mathematische Zeitschrift}, volume = {78}, year = {1962}, pages = {148-153}, zbl = {0107.25702}, url = {http://dml.mathdoc.fr/item/GDZPPN002392216} }
Wiegold, James. Embedding group amalgams in wreath products.. Mathematische Zeitschrift, Tome 78 (1962) pp. 148-153. http://gdmltest.u-ga.fr/item/GDZPPN002392216/