1. Frank R, Guenot A, Humbert P. Numerical analysis of contacts in geomechanics. In: 4th International Conference on Numerical Methods in Geomechanics, vol. 1; 1982. p. 37–45
2. Finite element analysis of contact problems;Herrmann;J. Eng. Mech., ASCE,1978
3. On joint/interface elements and associated problems of numerical ill conditioning;Pande;Int. J. Numer. Anal. Meth. Geomech.,1979
4. Griffiths DV. Numerical modelling of interfaces using conventional finite elements. In: Proceedings of the 5th International Conference on Numerical Methods in Geomechanics, Nagoya; 1985. p. 837–44
5. Thin-layer element for interfaces and joints;Desai;Int. J. Numer. Anal. Meth. Geomech.,1984