%0 Journal Article
%A V. A. Medvedev
%T Optimal representation of functions by the sum of two compositions
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1991
%P 41-50
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1991_5_a8/
%G ru
%F IVM_1991_5_a8