TY  - JOUR
AU  - M. M. Malamud
TI  - On transformation operators for ordinary differential equations
JO  - Trudy Moskovskogo matematičeskogo obŝestva
PY  - 1990
SP  - 68
EP  - 97
VL  - 53
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MMO_1990_53_a2/
LA  - ru
ID  - MMO_1990_53_a2
ER  -