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@article{AL_1999_38_5_a0, author = {Ch. K. Gupta and E. I. Timoshenko}, title = {Primitive systems of elements in the varieties $A_mA_n$: a}, journal = {Algebra i logika}, pages = {513--530}, publisher = {mathdoc}, volume = {38}, number = {5}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1999_38_5_a0/} }
Ch. K. Gupta; E. I. Timoshenko. Primitive systems of elements in the varieties $A_mA_n$: a. Algebra i logika, Tome 38 (1999) no. 5, pp. 513-530. http://geodesic.mathdoc.fr/item/AL_1999_38_5_a0/