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@article{AL_1992_31_2_a0, author = {Yu. G. Ventsov}, title = {The effective choice problem for relations and reducibilities}, journal = {Algebra i logika}, pages = {101--118}, publisher = {mathdoc}, volume = {31}, number = {2}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1992_31_2_a0/} }
Yu. G. Ventsov. The effective choice problem for relations and reducibilities. Algebra i logika, Tome 31 (1992) no. 2, pp. 101-118. http://geodesic.mathdoc.fr/item/AL_1992_31_2_a0/