1. Trends in relationships between measured in situ stresses and depth;Brown;Int. J. Rock Mech. Min. Sci. & Geomech. Abstr.,1978
2. Very large span openings at shallow depth: deformation magnitudes from jointed models and F.E. analysis;Barton,1979
3. Classification of rock masses with respect to tunnel stability—new experiences with the Q-system;Grimstad,1986
4. Updating of the Q-system for NMT;Grimstad,1993
5. A generalized distinct element program for modelling jointed rock;Cundall,1980