%0 Journal Article %A M. V. Dolov %T Algebraical Limit Cycles of Polynomial Vector Fields on the Plane %J Differencialʹnye uravneniâ %D 2001 %P 1155-1160 %V 37 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_9_a0/ %G ru %F DE_2001_37_9_a0