TY  - JOUR
AU  - M. M. Smirnov
TI  - The second boundary value problem for a certain fourth order equation of mixed type in the disc
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 2052
EP  - 2057
VL  - 9
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_11_a14/
LA  - ru
ID  - DE_1973_9_11_a14
ER  -