TY  - JOUR
AU  - M. V. Kondrat'eva
TI  - A minimal dimension polynomial of the extension of a field that is given by a system of linear differential equations
JO  - Matematičeskie zametki
PY  - 1989
SP  - 80
EP  - 86
VL  - 45
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1989_45_3_a7/
LA  - ru
ID  - MZM_1989_45_3_a7
ER  -