%0 Journal Article
%A L. V. Ershov
%T On the formulation of the mining stability problem
%J Doklady Akademii Nauk
%D 1962
%P 305-307
%V 143
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1962_143_2_a15/
%G ru
%F DAN_1962_143_2_a15