@article{TM_1966_92_a7,
     author = {O. A. Ladyzhenskaya and V. Ya. Rivkind and N. N. Ural'tseva},
     title = {The classical solvability of diffraction problems},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {116--146},
     publisher = {mathdoc},
     volume = {92},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1966_92_a7/}
}