%0 Journal Article %A M. K. Polshkov %A A. K. Urupov %A A. V. Nevinnyi %A V. A. Nevinnyi %A V. S. Nitievskii %T Determination of the velocity field parameters in three-dimensional multilayer media with curvilinear boundaries %J Doklady Akademii Nauk %D 1977 %P 78-80 %V 233 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_233_1_a19/ %G ru %F DAN_1977_233_1_a19