TY  - JOUR
AU  - L. I. Kamynin
AU  - B. N. Khimchenko
TI  - A theorem on an infinite derivative for a second-order parabolic equation with a nonnegative characteristic form
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 2103
EP  - 2112
VL  - 20
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_12_a10/
LA  - ru
ID  - DE_1984_20_12_a10
ER  -