TY  - JOUR
AU  - L. M. Nevostruev
AU  - S. P. Pul'kin
TI  - Some boundary value problems for an equation with two lines of degeneracy
JO  - Doklady Akademii Nauk
PY  - 1976
SP  - 558
EP  - 561
VL  - 227
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1976_227_3_a10/
LA  - ru
ID  - DAN_1976_227_3_a10
ER  -