%0 Journal Article %A F. G. Mukhlisov %T On the existence and uniqueness of the solution of a singular problem in the mathematical theory of diffraction %J Differencialʹnye uravneniâ %D 1989 %P 2154-2164 %V 25 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_12_a15/ %G ru %F DE_1989_25_12_a15