TY  - JOUR
AU  - Yu. S. Il'yashenko
TI  - Analytic unsolvability of the stability problem and the problem of topological classification of the singular points of analytic systems of differential equations
JO  - Sbornik. Mathematics
PY  - 1976
SP  - 140
EP  - 152
VL  - 28
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1976_28_2_a1/
LA  - en
ID  - SM_1976_28_2_a1
ER  -