%0 Journal Article %A N. S. Muminov %T The structure of the family of trajectories in the neighborhood of a singular point of a first order differential equation of second degree %J Differencialʹnye uravneniâ %D 1972 %P 953-963 %V 8 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_6_a1/ %G ru %F DE_1972_8_6_a1