@article{ZNSL_1979_89_a19,
     author = {A. M. Radin},
     title = {On calculation of wave field of the source inside a~thin sphere with a~slit},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {270--274},
     publisher = {mathdoc},
     volume = {89},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_89_a19/}
}