TY  - JOUR
AU  - M. M. Khapaev
TI  - Linear differential equations with small coefficients of several higher derivatives in the neighborhood of regular singular points of the equation
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1961
VL  - 16
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1961_16_4_a16/
LA  - ru
ID  - RM_1961_16_4_a16
ER  -