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@article{IVM_1981_5_a5, author = {N. R. Bukharaev}, title = {On $T$-degrees of differences of recursively enumerable sets}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {40--49}, publisher = {mathdoc}, number = {5}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1981_5_a5/} }
N. R. Bukharaev. On $T$-degrees of differences of recursively enumerable sets. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1981), pp. 40-49. http://geodesic.mathdoc.fr/item/IVM_1981_5_a5/