Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1979__54_139774, author = {Ralph Strebel}, title = {A note on groups with torsion-free abelianization and trivial multiplicator.}, journal = {Commentarii mathematici Helvetici}, pages = {147--158}, publisher = {mathdoc}, volume = {54}, year = {1979}, zbl = {0389.20028}, url = {http://geodesic.mathdoc.fr/item/CMH_1979__54_139774/} }
Ralph Strebel. A note on groups with torsion-free abelianization and trivial multiplicator.. Commentarii mathematici Helvetici, Tome 54 (1979), pp. 147-158. http://geodesic.mathdoc.fr/item/CMH_1979__54_139774/