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@article{ISU_2013_13_4_a23, author = {A. R. Khaliullina}, title = {Congruences of acts over groups}, journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics}, pages = {133--137}, publisher = {mathdoc}, volume = {13}, number = {4}, year = {2013}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ISU_2013_13_4_a23/} }
A. R. Khaliullina. Congruences of acts over groups. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 13 (2013) no. 4, pp. 133-137. http://geodesic.mathdoc.fr/item/ISU_2013_13_4_a23/