%0 Journal Article %A S. V. Gol'din %T The method of discontinuities in problems of geophysics and %J Doklady Akademii Nauk %D 1989 %P 824-827 %V 308 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_308_4_a13/ %G ru %F DAN_1989_308_4_a13