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@article{MZ_1960__73_169837, author = {Trueman MacHenry}, title = {The tensor product and the 2nd nilpotent product of groups.}, journal = {Mathematische Zeitschrift}, pages = {134--145}, publisher = {mathdoc}, volume = {73}, year = {1960}, zbl = {0121.27002}, url = {http://geodesic.mathdoc.fr/item/MZ_1960__73_169837/} }
Trueman MacHenry. The tensor product and the 2nd nilpotent product of groups.. Mathematische Zeitschrift, Tome 73 (1960), pp. 134-145. http://geodesic.mathdoc.fr/item/MZ_1960__73_169837/