%0 Journal Article %A B. G. Nikolaev %T Wave processes arising in the diffraction of waves from an annular source situated coaxially with an ideally reflecting, circular cone %J Zapiski Nauchnykh Seminarov POMI %D 1976 %P 168-191 %V 62 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1976_62_a13/ %G ru %F ZNSL_1976_62_a13