%0 Journal Article
%A A. B. Ugol'nikov
%T On the depth and complexity of formulas that realize functions in
%J Doklady Akademii Nauk
%D 1988
%P 1341-1344
%V 298
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1988_298_6_a13/
%G ru
%F DAN_1988_298_6_a13