%0 Journal Article %A A. Sakabekov %T On the existence of a global solution of an initial-boundary value %J Doklady Akademii Nauk %D 1991 %P 75-78 %V 321 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_321_1_a14/ %G ru %F DAN_1991_321_1_a14