@article{TM_2006_254_a11,
     author = {R. M. Fedorov},
     title = {Upper {Bounds} for the {Number} of {Orbital} {Topological} {Types} of {Planar} {Polynomial} {Vector} {Fields} {{\textquotedblleft}Modulo} {Limit} {Cycles{\textquotedblright}}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {254--271},
     year = {2006},
     volume = {254},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2006_254_a11/}
}