TY  - JOUR
TI  - Additions to: N. B. Medvedeva, A monodromy criterion for a singular point of a vector field on the plane (Algebra i Analiz 13 (2001), no. 3, 240–240)
JO  - Algebra i analiz
PY  - 2001
SP  - 240
VL  - 13
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/AA_2001_13_3_a13/
LA  - ru
ID  - AA_2001_13_3_a13
ER  -