%0 Journal Article %A T. F. Bulatskaya %T The construction of a set of systems of differential equations that have prescribed curves as their limit cycles %J Differencialʹnye uravneniâ %D 1972 %P 1349-1356 %V 8 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_8_a1/ %G ru %F DE_1972_8_8_a1