TY  - JOUR
AU  - N. G. Sorokina
TI  - Boundary value problems for a three-dimensional equation of mixed type of the second kind
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 173
EP  - 176
VL  - 18
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_1_a20/
LA  - ru
ID  - DE_1982_18_1_a20
ER  -