@article{DAN_1987_295_6_a18,
     author = {Yu. A. Tuchkin and A. E. Poedinchuk and V. P. Shestopalov},
     title = {On the regularization of spectral problems of wave scattering by},
     journal = {Doklady Akademii Nauk},
     pages = {1358--1362},
     publisher = {mathdoc},
     volume = {295},
     number = {6},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_295_6_a18/}
}