%0 Journal Article
%A R. I. Freidson
%T Regular approximations to the recursive predicates
%J Zapiski Nauchnykh Seminarov POMI
%D 1971
%P 220-233
%V 20
%U http://geodesic.mathdoc.fr/item/ZNSL_1971_20_a20/
%G ru
%F ZNSL_1971_20_a20