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@article{AL_1991_30_3_a1, author = {N. Kh. Kasymov}, title = {Positive algebras with congruences of finite index}, journal = {Algebra i logika}, pages = {293--305}, publisher = {mathdoc}, volume = {30}, number = {3}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1991_30_3_a1/} }
N. Kh. Kasymov. Positive algebras with congruences of finite index. Algebra i logika, Tome 30 (1991) no. 3, pp. 293-305. http://geodesic.mathdoc.fr/item/AL_1991_30_3_a1/