%0 Journal Article %T On the Seminar on Qualitative Theory of Differential Equations at Moscow State University %J Differencialʹnye uravneniâ %D 2005 %P 851-860 %V 41 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2005_41_6_a16/ %G ru %F DE_2005_41_6_a16