%0 Journal Article
%A V. Yu. Meitus
%A K. P. Vershinin
%T On some unsolvable problems in computable categories
%J Doklady Akademii Nauk
%D 1974
%P 42-43
%V 216
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1974_216_1_a9/
%G ru
%F DAN_1974_216_1_a9