TY  - JOUR
AU  - I. N. Yakushina
TI  - Uniform asymptotic expansions for the solutions of second-order differential equations with two turning points and a complex spectral parameter
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 1014
EP  - 1020
VL  - 23
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_6_a10/
LA  - ru
ID  - DE_1987_23_6_a10
ER  -