1. ‘Ein Gegenstück zum Ritzschen Verfahren’, 2. Int. Kongr. für Techn. Mech., Zurich, 1926, pp. 131-137.
2. The coupling of the finite element method and boundary solution procedures
3. and , ‘Marriage a la mode—the best of both worlds (finite elements and boundary integrals)’, Proc. Int. Symp. on Innovative Numerical Analysis in Applied Engineering Science, Versailles, May 1977, pp. 19-26. Also, Ch. 5, pp. 81-106 in
4. Energy Methods in Finite Element Analysis (Eds. and ), Wiley, New York, 1979.
5. ‘The Finite Element Method’, 3rd edn, McGraw-Hill, London 1977.