1. Behaviour of concrete under biaxial stress;Kupfer;J. Am. Concr. Inst.,1969
2. Effects of the intermediate principal stress on the failure of limestone, dolomite and glass at different temperatures and strain rates;Handin;J. Geophys. Res.,1967
3. The strength of concrete under combined shear and direct stress;Goode;Mag. Concr. Res.,1967
4. Strength of concrete under combined stresses;Bellamy;J. Concr. Inst.,1961
5. The failure of thick-walled hollow cylinders of isotropic rock;Hoskins;Int. J. Rock Mech. Min. Sci.,1969