@article{DAN_1983_270_1_a16,
     author = {A. A. Berdyev and V. A. Mukhamedov},
     title = {Two types of calm in the seismo acoustic forecast},
     journal = {Doklady Akademii Nauk},
     pages = {68--71},
     publisher = {mathdoc},
     volume = {270},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_270_1_a16/}
}