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@article{IVM_1985_4_a1, author = {M. M. Arslanov}, title = {Families of recursively enumerable sets and their degrees of unsolvability}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {13--19}, publisher = {mathdoc}, number = {4}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1985_4_a1/} }
M. M. Arslanov. Families of recursively enumerable sets and their degrees of unsolvability. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1985), pp. 13-19. http://geodesic.mathdoc.fr/item/IVM_1985_4_a1/