@article{DAN_1987_297_5_a16,
     author = {Yu. A. Eremin and A. G. Sveshnikov},
     title = {On the existence of equivalent scatterers in inverse problems of},
     journal = {Doklady Akademii Nauk},
     pages = {1095--1099},
     publisher = {mathdoc},
     volume = {297},
     number = {5},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_297_5_a16/}
}