%0 Journal Article
%A V. A. Yakubovich
%T Nonoscillation of linear periodic Hamiltonian equations and related problems
%J Algebra i analiz
%D 1991
%P 229-253
%V 3
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_1991_3_5_a10/
%G ru
%F AA_1991_3_5_a10