Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1977__154_172511, author = {J.C. Lennox and D. Segal and S. Stonehewer}, title = {The {Lower} {Central} {Series} of a {Join} of {Subnormal} {Subgroups.}}, journal = {Mathematische Zeitschrift}, pages = {85--90}, publisher = {mathdoc}, volume = {154}, year = {1977}, zbl = {0334.20017}, url = {http://geodesic.mathdoc.fr/item/MZ_1977__154_172511/} }
J.C. Lennox; D. Segal; S. Stonehewer. The Lower Central Series of a Join of Subnormal Subgroups.. Mathematische Zeitschrift, Tome 154 (1977), pp. 85-90. http://geodesic.mathdoc.fr/item/MZ_1977__154_172511/