TY  - JOUR
AU  - L. V. Ershov
TI  - On the formulation of the mining stability problem
JO  - Doklady Akademii Nauk
PY  - 1962
SP  - 305
EP  - 307
VL  - 143
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1962_143_2_a15/
LA  - ru
ID  - DAN_1962_143_2_a15
ER  -