- The Use of an Object Oriented Language in the Development of Structural Engineering Programmes,
D.A. Shepherd and I.D. Lefas
Paper 3.7 from CCP: 27, ISBN 0-948749-29-6 (1994)
- The Application of a Soil Structure Interaction Procedure to the Analysis and Design of Raft Foundations,
I.D. Lefas, V.N. Georgiannou and D.A. Shepherd
Paper 5.1 from CCP: 15, ISBN 0-948749-17-2 (1993)