%0 Journal Article
%A L. L. Tsinman
%T Certain algorithms in a formal arithmetic system
%J Doklady Akademii Nauk
%D 1969
%P 489-490
%V 189
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_189_3_a10/
%G ru
%F DAN_1969_189_3_a10