@article{DAN_1991_320_5_a11,
     author = {A. V. Chigarev},
     title = {Sequential solution of the inverse problem of wave scattering in nonhomogeneous elastic media},
     journal = {Doklady Akademii Nauk},
     pages = {1085--1087},
     publisher = {mathdoc},
     volume = {320},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_5_a11/}
}