%0 Journal Article %A Yu. A. Burmakov %A L. P. Vinnik %A A. V. Treusov %T Construction of a 3-d model of a medium according to the observations of refracted body waves %J Doklady Akademii Nauk %D 1983 %P 320-323 %V 269 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_269_2_a15/ %G ru %F DAN_1983_269_2_a15