%0 Journal Article %A A. A. Muchnik %T Isomorphism of systems of recursively enumerable sets with effective properties %J Trudy Moskovskogo matematičeskogo obŝestva %D 1958 %P 407-412 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1958_7_a10/ %G ru %F MMO_1958_7_a10