1. ‘Stability and bifurcation in geomechanics’ (main lecture), Proc. 6th Int. Conf. on Numerical Methods in Geomech., Innsbruck, 1988, pp. 155-168 (Balkema).
2. and , ‘Imperfection sensitivity of the biaxial test on dry sand’, Proc. IUTAM Conf. on Deformation and Failure of Granular Materials. Delft, 1982 pp. 485-481 (Balkema).
3. ‘A simple shear-band analysis using compliances’, Proc. IUTAM conf. on Deformation and Failure of Granular Materials, Delft, 1982, pp. 493-499 (Balkema).
4. Comparison of frictional material models with respect to shear band initiation
5. The thickness of shear bands in granular materials