%0 Journal Article %A Qi Chengzhi %A Wang Mingyang %A Qian Qihu %A Chen Jianjie %T Structural hierarchy of rock masses and the mechanisms of its formation %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2008 %P 31-39 %N 5 %U http://geodesic.mathdoc.fr/item/VMUMM_2008_5_a5/ %G ru %F VMUMM_2008_5_a5