@article{DAN_1975_222_1_a15,
     author = {I. L. Nersesov and Yu. F. Kopnichev and G. A. Vostrikov},
     title = {Magnitude calibration of earthquakes according to code-waves at distances up to 3000 km},
     journal = {Doklady Akademii Nauk},
     pages = {76--78},
     publisher = {mathdoc},
     volume = {222},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_222_1_a15/}
}