%0 Journal Article
%A S. N. Olekhnik
%T The boundedness and unboundedness of the solutions of certain systems of second order equations
%J Differencialʹnye uravneniâ
%D 1972
%P 1894-1897
%V 8
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1972_8_10_a24/
%G ru
%F DE_1972_8_10_a24