%0 Journal Article %A Yu. A. Eremin %A A. G. Sveshnikov %T Quasi-solution of boundary value problems of diffraction based on hypersingular equations %J Differencialʹnye uravneniâ %D 1993 %P 1602-1608 %V 29 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_9_a13/ %G ru %F DE_1993_29_9_a13