1. W. Addis, Structural Engineering: The Nature of Theory and Design (Ellis Horwood, New York, 1990)
2. B. Barnes, T.S. Kuhn and Social Science (Columbia University Press, New York, 1982)
3. B. Barnes, D. Bloor, Relativism, rationalism and the sociology of knowledge, in Rationality and Relativism, ed. by M. Hollis, S. Lukes (MIT Press, Cambridge, 1982), pp. 21–47
4. D.I. Blockley, The Nature of Structural Design and Safety (Ellis Horwood, Chichester, 1980)
5. D.I. Blockley, Engineering from reflective practice. Res. Eng. Des. 4, 13–22 (1992)