%0 Journal Article %A S. S. Kharibegashvili %T Boundary value problems for a class of systems of second-order partial differential equations %J Differencialʹnye uravneniâ %D 1998 %P 114-122 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1998_34_1_a17/ %G ru %F DE_1998_34_1_a17