1. Study on the failure mechanism of a sandstone under combined compressive stresses;Akai,1967
2. Die Mechanik der bleibenden Formänderung in kristallinisch aufgebauten Körpern;Böker;Verhandl. Deut. Ingr. Mitt. Forsch.,1915
3. Brittle fracture of rocks;Brace,1964
4. Failure of plain concrete under combined stresses;Bresler;Trans. Am. Soc. Civil Engrs.,1957
5. Deformation of rocks at 500° to 800°C;Griggs;Geol. Soc. Am., Mem.,1960