TY  - JOUR
AU  - L. M. Berkovich
TI  - The~Halphen problem on equivalence of ordinary linear differential equations
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1986
SP  - 221
EP  - 222
VL  - 41
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1986_41_1_a6/
LA  - en
ID  - RM_1986_41_1_a6
ER  -