%0 Journal Article
%A R. G. Nigmatullin
%T Two classes of proofs of lower bounds on complexity
%J Doklady Akademii Nauk
%D 1987
%P 272-275
%V 294
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_294_2_a2/
%G ru
%F DAN_1987_294_2_a2