1. ‘A simple adaptive scheme based on a new hybrid FE model’, Proc. NUMETA 87 Conf., Vol. 1, Swansea, July 1987.
2. Hybrid-Trefftz plate bending elements with p-method capabilities
3. Quality assessment and control of finite element solutions
4. Mesh design for the p-version of the finite element method
5. and , ‘A simple error estimator and adaptive procedure for practical engineering analysis’, Technical Report C/R/550/86, Institute for Numerical Methods in Engineering, University College of Swansea, June 1986; also