%0 Journal Article %A D. G. Bitsadze %A I. T. Kiguradze %T Stability of the solution set of nonlinear boundary value problems %J Differencialʹnye uravneniâ %D 1984 %P 1495-1501 %V 20 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_9_a2/ %G ru %F DE_1984_20_9_a2