@article{DAN_1973_211_4_a21,
     author = {E. N. Bessonova and G. A. Sitnikova and V. M. Fishman},
     title = {A new method of the interpretation of refracted wave hodographs (the $\tau$-method)},
     journal = {Doklady Akademii Nauk},
     pages = {836--839},
     publisher = {mathdoc},
     volume = {211},
     number = {4},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_4_a21/}
}