@article{DAN_1977_235_4_a5,
     author = {V. G. Deich and E. L. Korotyaev and D. R. Yafaev},
     title = {Potential scattering taking account of spatial anisotropy},
     journal = {Doklady Akademii Nauk},
     pages = {749--752},
     publisher = {mathdoc},
     volume = {235},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_235_4_a5/}
}