%0 Journal Article
%A Ya. N. Khamidullin
%T On the nature of the geophysical medium discontinuity
%J Doklady Akademii Nauk
%D 1989
%P 828-830
%V 305
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_305_4_a13/
%G ru
%F DAN_1989_305_4_a13