%0 Journal Article
%A G. S. Tseitin
%T On the complexity of proof in prepositional calculus
%J Zapiski Nauchnykh Seminarov POMI
%D 1968
%P 234-259
%V 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1968_8_a25/
%G ru
%F ZNSL_1968_8_a25