%0 Journal Article
%A D. I. Kristev
%T The number of $\alpha$-points on a characteristic and the length of level lines of solutions of linear parabolic equations with one space variable
%J Differencialʹnye uravneniâ
%D 1985
%P 862-870
%V 21
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_5_a17/
%G ru
%F DE_1985_21_5_a17