TY  - JOUR
AU  - V. M. Millionshchikov
TI  - The instability of the singular exponents and the non-symmetry of the relation of reducibility of linear systems of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1969
SP  - 749
EP  - 750
VL  - 5
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1969_5_4_a13/
LA  - ru
ID  - DE_1969_5_4_a13
ER  -