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@article{AL_1975_14_5_a4, author = {S. V. Pchelintsev}, title = {Nilpotency of the associator ideal of a free finitely generated}, journal = {Algebra i logika}, pages = {543--571}, publisher = {mathdoc}, volume = {14}, number = {5}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1975_14_5_a4/} }
S. V. Pchelintsev. Nilpotency of the associator ideal of a free finitely generated. Algebra i logika, Tome 14 (1975) no. 5, pp. 543-571. http://geodesic.mathdoc.fr/item/AL_1975_14_5_a4/