Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1970__45_139439, author = {Urs Stammbach}, title = {Homological {Methods} in {Group} {Varieties.}}, journal = {Commentarii mathematici Helvetici}, pages = {287--298}, publisher = {mathdoc}, volume = {45}, year = {1970}, zbl = {0195.03703}, url = {http://geodesic.mathdoc.fr/item/CMH_1970__45_139439/} }
Urs Stammbach. Homological Methods in Group Varieties.. Commentarii mathematici Helvetici, Tome 45 (1970), pp. 287-298. http://geodesic.mathdoc.fr/item/CMH_1970__45_139439/