@article{DAN_1991_318_4_a25,
     author = {M. A. Sumbatyan and N. V. Boev},
     title = {Reconstruction of the shape of a defect from the scattered wave field in a two-dimensional elastic medium},
     journal = {Doklady Akademii Nauk},
     pages = {880--882},
     publisher = {mathdoc},
     volume = {318},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_318_4_a25/}
}