%0 Journal Article
%A N. N. Nepeivoda
%T A certain generalization of the Kleene--Mostowski hierarchy
%J Doklady Akademii Nauk
%D 1973
%P 295-297
%V 212
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_212_2_a6/
%G ru
%F DAN_1973_212_2_a6