%0 Journal Article %A B. G. Gabdulkhaev %T Multidimensional singular integral equations with positive operators %J Differencialʹnye uravneniâ %D 1993 %P 1504-1516 %V 29 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_9_a3/ %G ru %F DE_1993_29_9_a3