TY  - JOUR
AU  - V. V. Basov
TI  - Formal and analytic equivalence of real systems of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 981
EP  - 991
VL  - 13
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_6_a1/
LA  - ru
ID  - DE_1977_13_6_a1
ER  -