%0 Journal Article
%A A. N. Tikhonov
%T Approximate functional equations of the first kind
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1981
%P 197-202
%V 158
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1981_158_a16/
%G ru
%F TM_1981_158_a16