- A Knowledge-Based System Approach to the Estimation of Structural Steelwork Mass,
D.St.J. Fox and J.E. Butler
Paper 1.2 from CCP: 27, ISBN 0-948749-29-6 (1994)
- An Advisory Knowledge-Based System for the Explosive Demolition of Brick Chimneys,
M.A. Bramer, A.J. Kispal, J.E. Butler and D.S.J. Fox
Paper 6.2 from CCP: 14, ISBN 0-948749-16-4 (1993)