%0 Journal Article
%A Yu. L. Ershov
%T New examples of undecidable theories
%J Algebra i logika
%D 1966
%P 37-47
%V 5
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1966_5_5_a2/
%G ru
%F AL_1966_5_5_a2