%0 Journal Article %A Yu. K. Lando %T Normally solvable and controllable correspondences %J Differencialʹnye uravneniâ %D 1977 %P 2070-2075 %V 13 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_11_a17/ %G ru %F DE_1977_13_11_a17