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@article{DAN_1976_230_6_a15, author = {S. D. Kogan}, title = {Experimental hodograph of $P$ wave and the horizontal inhomogeneity of the mantle}, journal = {Doklady Akademii Nauk}, pages = {1318--1321}, publisher = {mathdoc}, volume = {230}, number = {6}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_230_6_a15/} }
S. D. Kogan. Experimental hodograph of $P$ wave and the horizontal inhomogeneity of the mantle. Doklady Akademii Nauk, Tome 230 (1976) no. 6, pp. 1318-1321. http://geodesic.mathdoc.fr/item/DAN_1976_230_6_a15/