TY  - JOUR
AU  - M. G. Gasymov
AU  - A. M. Magerramov
TI  - On the existence of transformation operators for high-order differential equations polynomially depending on a parameter
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 259
EP  - 262
VL  - 235
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_235_2_a3/
LA  - ru
ID  - DAN_1977_235_2_a3
ER  -