TY  - JOUR
AU  - A. M. Nakhushev
TI  - The correct formulation of boundary value problems for parabolic equations with a characteristic form of variable sign
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 130
EP  - 135
VL  - 9
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_1_a13/
LA  - ru
ID  - DE_1973_9_1_a13
ER  -