%0 Journal Article
%A A. V. Toger
%T On the complexity of some functional classes
%J Doklady Akademii Nauk
%D 1971
%P 789-791
%V 199
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_199_4_a14/
%G ru
%F DAN_1971_199_4_a14