05-06-2013, 11:33 PM
(This post was last modified: 05-06-2013, 11:53 PM by Dell_Brett.)
Haines, A. and Terbrugge, P. J (1991), Preliminary estimate of rock slope stability using rock mass classification, 7th cong, Int. soc of rock mech, Aachen, Germany, p 887-92.