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@article{AL_1994_33_2_a2, author = {M. Kummer and S. Wehner and X.-D. Yi}, title = {Discrete families of recursive functions, and index sets}, journal = {Algebra i logika}, pages = {147--165}, publisher = {mathdoc}, volume = {33}, number = {2}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1994_33_2_a2/} }
M. Kummer; S. Wehner; X.-D. Yi. Discrete families of recursive functions, and index sets. Algebra i logika, Tome 33 (1994) no. 2, pp. 147-165. http://geodesic.mathdoc.fr/item/AL_1994_33_2_a2/