1. Stability of steep slopes on hard unweathered rock;Terzaghi;Géotechnique,1962
2. Robertson AM. The interpretation of geological factors for use in slope theory. In: Planning Open Pit Mines, Proceedings, Johannesburg, 1970. p. 55–71.
3. The effect of discontinuity persistence on rock slope stability;Einstein;Int J Rock Mech Min Sci Geomech Abstr,1983
4. Eberhardt E, Willenberg H, Loew S, Maurer H. Active rockslides in Switzerland—understanding mechanisms and processes. In: International Conference on Landslides—Causes, Impacts and Countermeasures, Davos, 2001. p. 25–34.
5. Progressive failure in slopes of overconsolidated plastic clay and clay shales;Bjerrum;J Soil Mech Foundat Div ASCE,1967