%0 Journal Article %A M. V. Dolov %A A. A. Alekseev %T On the absence of limit cycles in dynamical systems with an integrating factor of a special type %J Differencialʹnye uravneniâ %D 1994 %P 947-954 %V 30 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_6_a3/ %G ru %F DE_1994_30_6_a3