@article{DAN_1978_241_4_a12,
     author = {V. S. Geiko},
     title = {Refracted wave godograph inversion},
     journal = {Doklady Akademii Nauk},
     pages = {793--796},
     publisher = {mathdoc},
     volume = {241},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_4_a12/}
}