1. GOST 21153.2-84. Rocks. Methods for determining uniaxial compressive strength.
2. GOST 21153.3-85. Rocks. Methods for determining uniaxial tensile strength.
3. GOST 21153.5-88. Rocks. Methods for determining compressive strength in case of oblique cut.
4. Fisenko, G.L., Ustoichivost’ bortov kar’erov i otvalov (Slope Stability of Dumps and Open Pits), Moscow: Nedra, 1965.
5. Popov, I.I., Nizametdinov, F.K., Okatov, R.P., and Dolgonosov, V.N., Prirodnye i tekhnogennye osnovy upravleniya ustoichivost’yu ustupov i bortov kar’erov (Natural and Manmade Basics for Controlling Slope Stability of Open Pits), Almaty: Gylym, 1997.