TY  - JOUR
AU  - S. V. Volkov
TI  - Construction of the planar vector fields with~nonsimple critical point of~prescribed topological structure
JO  - Contemporary Mathematics. Fundamental Directions
PY  - 2022
SP  - 575
EP  - 595
VL  - 68
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMFD_2022_68_4_a2/
LA  - ru
ID  - CMFD_2022_68_4_a2
ER  -