TY  - JOUR
AU  - D. I. Kristev
TI  - The number of $\alpha$-points on a characteristic and the length of level lines of solutions of linear parabolic equations with one space variable
JO  - Differencialʹnye uravneniâ
PY  - 1985
SP  - 862
EP  - 870
VL  - 21
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1985_21_5_a17/
LA  - ru
ID  - DE_1985_21_5_a17
ER  -