%0 Journal Article
%A A. L. Teptin
%T On the sign of the Green's function of a~boundary value problem with periodic and Sturm's boundary conditions
%J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki
%D 2008
%P 150-151
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VUU_2008_2_a49/
%G ru
%F VUU_2008_2_a49