7[7]Lo, K. Y. and Wai, R. S. C.. Time dependent deformation of shaly rocks in southern Ontario. Cana. Geotech. J. , 1978, Vol.15.
8[8]Broadbent,C. D. and Ko,K. C. , 1971, Rheology aspects of rock slope failure. Pro. of 13th Symp on Rock Mechanics, Illionis,537 ~ 572.
9[9]Z. Y. Zhang, R. Q. Huang. Epigenetic recreation of rockmass structure and time - dependent deformation, Proc. of the 6th Congr. of IAEGE, A. A. Balkema, 1990,2065 ~2072.
10[10]Huang Runqiu, Xu Qian. Process simulation and control of geologic hazards. Progress in Natural Science, Taylor & Francis,1999,9(9) :642 ~647.