1. Ai C, Zhang J, Li Y-W, Zeng J, Yang X-L, Wang J-G (2016) Estimation criteria for rock brittleness based on energy analysis during the rupturing process. Rock Mech Rock Eng 49:4681–4698
2. Alejano LR, Posada D, Rodríguez-Dono A (2009) Servo-controlled strength tests on moderately weathered granite. EUROCK 2009: rock engineering in difficult ground conditions: Soft Rock & Karst. Catvat-Dubrovnik (Croatia). CRC. Taylord & Francis Gr., London, pp 181–186
3. Bésuelle P, Desrues J, Raynaud S (2000) Experimental characterisation of the localisation phenomenon inside a Vosges sandstone in a triaxial cell. Int J Rock Mech Min Sci 37:1223–1237
4. Bobet A, Einstein HH (1998) Fracture coalescence in rock-type materials under uniaxial and biaxial compression. Int J Rock Mech Min Sci 35:863–888
5. Franklin JA (2007) Suggested methods for determining the strength of rock materials in triaxial compression. In: Ulusay R, Hudson JA (eds) The complete ISRM suggested methods for rock characterization, testing and monitoring: 1974–2006. The ISRM Turkish National Group, Ankara, pp 157–164