%0 Journal Article
%A Ya. V. Bykov
%A V. G. Linenko
%T Qualitative investigation of trajectories of nonlinear systems of difference equations
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1967
%P 21-29
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1967_1_a3/
%G ru
%F IVM_1967_1_a3