TY  - JOUR
AU  - V. P. Maslov
AU  - A. I. Shafarevich
TI  - On Asymptotic Solutions of Nonlinear Equations in the Presence of Turning Points
JO  - Differencialʹnye uravneniâ
PY  - 2004
SP  - 686
EP  - 691
VL  - 40
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2004_40_5_a13/
LA  - ru
ID  - DE_2004_40_5_a13
ER  -