%0 Journal Article %A A. M. Radin %T On calculation of wave field of the source inside a thin sphere with a slit %J Zapiski Nauchnykh Seminarov POMI %D 1979 %P 270-274 %V 89 %U http://geodesic.mathdoc.fr/item/ZNSL_1979_89_a19/ %G ru %F ZNSL_1979_89_a19