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@article{DAN_1960_131_4_a13, author = {L. N. Shevrin}, title = {On densely imbedded ideals of semigroups}, journal = {Doklady Akademii Nauk}, pages = {765--768}, publisher = {mathdoc}, volume = {131}, number = {4}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_4_a13/} }
L. N. Shevrin. On densely imbedded ideals of semigroups. Doklady Akademii Nauk, Tome 131 (1960) no. 4, pp. 765-768. http://geodesic.mathdoc.fr/item/DAN_1960_131_4_a13/