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@article{AL_1998_37_3_a8, author = {V. T. Filippov}, title = {Nil-elements of index $2$ in {Mal'tsev} algebras}, journal = {Algebra i logika}, pages = {358--373}, publisher = {mathdoc}, volume = {37}, number = {3}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1998_37_3_a8/} }
V. T. Filippov. Nil-elements of index $2$ in Mal'tsev algebras. Algebra i logika, Tome 37 (1998) no. 3, pp. 358-373. http://geodesic.mathdoc.fr/item/AL_1998_37_3_a8/