TY  - JOUR
AU  - È. I. Grudo
TI  - A method for lowering the order of linear differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 1514
EP  - 1515
VL  - 14
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_8_a22/
LA  - ru
ID  - DE_1978_14_8_a22
ER  -