@article{DAN_1989_304_1_a14,
     author = {A. P. Kiselev and I. D. Tsvankin},
     title = {On the comparison of numerical and asymptotic methods for computation of elastic wave fields},
     journal = {Doklady Akademii Nauk},
     pages = {61--65},
     publisher = {mathdoc},
     volume = {304},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_1_a14/}
}