TY  - JOUR
AU  - V. I. Korzyuk
TI  - The problem of the conjugacy of certain nonstationary differential equations of order $2m$
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 750
EP  - 753
VL  - 7
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_4_a15/
LA  - ru
ID  - DE_1971_7_4_a15
ER  -