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3. Desai C. S. and Christian J. T. (eds.) Numerical Methods in Geotechnical Engineering McGraw‐Hill Book Co. Inc. New York N.Y. 1977.
4. Desai C. S. Eitani I. M. and Haycocks C. “An Application of Finite Element Procedure for Underground Structures with Nonlinear Materials and Joints ” Proceedings of the Fifth International Congress of the Society of Rock Mechanics Melbourne Australia Apr. 1983.
5. Desai C. S. Lightner J. G. and Sargand S. M. “Mixed and Hybrid Procedures for Nonlinear Problems in Geomechanics ” Proceedings of the Fourth International Conference on Numerical Methods in Geomechanics University of Alberta Edmonton Canada 1982.