1. and (Eds), Limit Equilibrium, Plasticity and Generalized Stress-Strain in Geotech. Eng., Proc. Workshop, McGill Univ., Montreal, Canada, ASCE, 1981.
2. and , Constitutive Laws for Engineering Materials, Prentice-Hall, Inc., Englewood Cliffs, N. J., 1983.
3. and (Eds), Mechanics of Engineering Materials, John Wiley & Sons, U. K., 1984.
4. (Ed.), ‘Constitutive relations for soils’, Proc., Int. Workshop on Const. Relations for Soils, Grenoble, A. A. Balkema, Netherlands, 1984.
5. A general basis for yield, failure and potential functions in plasticity