%0 Journal Article %A M. A. Shubin %T On the index of higher-dimensional Wiener--Hopf equations in a~half-space %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1969 %V 24 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1969_24_3_a9/ %G ru %F RM_1969_24_3_a9