%0 Journal Article
%A Yu. F. Dolgii
%T Construction of the approached characteristic equations for periodic systems with aftereffect and determinants of perturbation
%J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki
%D 2008
%P 42-43
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VUU_2008_2_a13/
%G ru
%F VUU_2008_2_a13