1. Specimen proportion key to better compressive strength tests;Grosvenor;Min. Engng, N.Y.,1963
2. Standardized Tests for Determining the Physical Properties of Mine Rock;Obert,1964
3. Determination of the tensile strength of rock by a compression test piece;Hiramatsu;Int. J. Rock Mech. Min. Sci.,1966
4. A simple method for assessing the uniaxial compressive strength of rock;Hobbs;Int. J. Rock Mech. Min. Sci.,1964
5. Determining the strength of rock strata on irregularly shaped specimens;Ilivitskii;Ugol,1961