@article{DAN_1972_202_3_a20,
     author = {A. V. Belonosova},
     title = {An inverse kinematic problem of seismics for two-dimensional medium},
     journal = {Doklady Akademii Nauk},
     pages = {572--575},
     publisher = {mathdoc},
     volume = {202},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_202_3_a20/}
}