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@article{DAN_1962_143_2_a15, author = {L. V. Ershov}, title = {On the formulation of the mining stability problem}, journal = {Doklady Akademii Nauk}, pages = {305--307}, publisher = {mathdoc}, volume = {143}, number = {2}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_143_2_a15/} }
L. V. Ershov. On the formulation of the mining stability problem. Doklady Akademii Nauk, Tome 143 (1962) no. 2, pp. 305-307. http://geodesic.mathdoc.fr/item/DAN_1962_143_2_a15/