1. Ashby, M. F. (1989a) Materials selection in conceptual design, in Materials and Engineering Design (eds B. F. Dyson and D. R. Hayhurst), Institute of Metals, London, Part I, Chapter 2, pp. 13–25.
2. Ashby, M. F. (1989b) On the engineering properties of materials. Acta Metallurgica, 37, 1273–93.
3. Ashby, M. F. (1991) Materials and shape. Acta Metallurgica et Materialia, 39, 1025–39.
4. ASTM (1988) Proposed terminology relating to precision and bias statements in test method standards, in Standards on Precision and Bias for Various Applications, 3rd edn, C26, ASTM, pp. 473–480.
5. BS 5497: Part 1:1987 Precision of Test Methods: Guide for the Determination of Repeatability and Reproducibility for a Standard Test Method. Equivalent to ISO 5725.