%0 Journal Article %A V. P. Varin %T Poincar\'e map for some polynomial systems of~differential equations %J Sbornik. Mathematics %D 2004 %P 917-934 %V 195 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2004_195_7_a0/ %G en %F SM_2004_195_7_a0