1. Hoek E, Brown ET. Underground excavations in rock. London: Inst. of Min. and Metall., 1980. 527 pp
2. Hoek E, Brown ET. The Hoek–Brown failure criterion: a 1988 update. Proc. 15th Canadian Rock Mech. Symp. University of Toronto: Department of Civil Engineering, 1988. p. 31–8
3. An interpretation of ground movements recorded during construction of the Donkin–Morien tunnel;Pelli;Can. Geotech. J.,1991
4. Kaiser PK. Observational modelling approach for design of underground excavations. The Application of Numerical Modelling in Geotechnical Engineering Symposium. ISRM S. African National Group, 1994. p. 1–8
5. Dilatancy in the fracture of crystalline rocks;Brace;J. Geophys. Res.,1966