%0 Journal Article %A N. V. Kislov %T Nonhomogeneous boundary value problems for differential-operator equations of mixed type, and their application %J Sbornik. Mathematics %D 1986 %P 17-35 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1986_53_1_a1/ %G en %F SM_1986_53_1_a1