1. Underground Excavations in Rock;Hoek,1980
2. Empirical strength criterion for rock masses;Hoek;J. Geotech. Engng Div. ASCE,1980
3. The Hoek-Brown failure criterion—a 1988 update;Hoek,1988
4. Geomechanics classification of rock masses and its application in tunnelling;Bieniawski,1988
5. 23rd Rankine lecture, strength of jointed rock masses;Hoek;Géotechnique,1983