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@article{IVM_1985_9_a2, author = {L. M. Gluskin}, title = {Normal extensions of commutative semigroups}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {14--22}, publisher = {mathdoc}, number = {9}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1985_9_a2/} }
L. M. Gluskin. Normal extensions of commutative semigroups. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1985), pp. 14-22. http://geodesic.mathdoc.fr/item/IVM_1985_9_a2/