%0 Journal Article %A M. I. Gil' %T On conditions for the dissipativity and existence of limit cycles of differential equations with a leading linear part %J Differencialʹnye uravneniâ %D 1987 %P 712-714 %V 23 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_4_a19/ %G ru %F DE_1987_23_4_a19