@article{1183505673, author = {Baer, Reinhold}, title = {The higher commutator subgroups of a group}, journal = {Bull. Amer. Math. Soc.}, volume = {50}, number = {12}, year = {1944}, pages = { 143-160}, language = {en}, url = {http://dml.mathdoc.fr/item/1183505673} }
Baer, Reinhold. The higher commutator subgroups of a group. Bull. Amer. Math. Soc., Tome 50 (1944) no. 12, pp. 143-160. http://gdmltest.u-ga.fr/item/1183505673/