%0 Journal Article
%A Yu. G. Borisovich
%T Topological characteristics and investigation of the solvability of nonlinear problems
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1997
%P 3-23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1997_2_a0/
%G ru
%F IVM_1997_2_a0