TY  - BOOK
AU  - Aksenov, V. V.
AU  - Efremenkov, Ð. Ð.
AU  - Begljakov, V.Yu.
TI  - The influence of relative distance between ledges on the stress-strain state of the rock at a face
KW  - ÑÑÑÐ´Ñ ÑÑÑÐ½ÑÑ Ð¢ÐÐ£
N2  - References: p. 19 (3 tit.)
ER  -