TY  - JOUR
AU  - G. N. Petrovskiǐ
TI  - Orthogonally similar systems of linear differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1983
SP  - 1823
EP  - 1826
VL  - 19
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1983_19_10_a29/
LA  - ru
ID  - DE_1983_19_10_a29
ER  -