TY  - JOUR
AU  - Z. A. Yanson
TI  - Asymptotics of solutions of second-order differential equations with two turning points and a complex parameter. I
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1976
SP  - 220
EP  - 233
VL  - 62
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1976_62_a17/
LA  - ru
ID  - ZNSL_1976_62_a17
ER  -