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@article{AL_1995_34_3_a5, author = {E. A. Palyutin}, title = {On coverings by classes of permutable equivalence relations}, journal = {Algebra i logika}, pages = {316--322}, publisher = {mathdoc}, volume = {34}, number = {3}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1995_34_3_a5/} }
E. A. Palyutin. On coverings by classes of permutable equivalence relations. Algebra i logika, Tome 34 (1995) no. 3, pp. 316-322. http://geodesic.mathdoc.fr/item/AL_1995_34_3_a5/