%0 Journal Article %A N. A. Lukashevich %T Integral curves of the Darboux equation %J Differencialʹnye uravneniâ %D 1966 %P 628-633 %V 2 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1966_2_5_a5/ %G ru %F DE_1966_2_5_a5