%0 Journal Article
%A I. M. Koval'chik
%T On systems of equations in a function space
%J Doklady Akademii Nauk
%D 1971
%P 265-267
%V 197
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_197_2_a3/
%G ru
%F DAN_1971_197_2_a3