%0 Journal Article
%A M. Bartushek
%T The zeros of the oscillatory solutions of the equation $(p(t)x')'+f(t,$ $x,$ $x')=0$
%J Differencialʹnye uravneniâ
%D 1976
%P 621-625
%V 12
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_4_a4/
%G ru
%F DE_1976_12_4_a4