%0 Journal Article %A J. M. Barzdiņš %T Complexity and accuracy of the solution of initial segments of the problem of occurrence in a recursively enumerable set %J Doklady Akademii Nauk %D 1971 %P 262-264 %V 199 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_199_2_a2/ %G ru %F DAN_1971_199_2_a2