TY  - JOUR
AU  - A. B. Zimin
TI  - The Cauchy problem for a second order linear equation with small parameter which degenerates in the limit to an equation with singular points
JO  - Differencialʹnye uravneniâ
PY  - 1969
SP  - 1583
EP  - 1593
VL  - 5
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1969_5_9_a4/
LA  - ru
ID  - DE_1969_5_9_a4
ER  -