1. Evans, I. (1958) Theoretical Aspects of Coal Ploughing,Conference in Non-Metallic Brittle Materials, Butterworths, London, pp. 451?8.
2. Evans, I. (1982) Optimum Line Spacing for Cutting Picks,Mining Engineer 141, pp. 433?4.
3. Evans, I. (1984) Lateral Spacing of Point-Attack Picks,Australian Journal of Coal Mining Technology and Research (in press).
4. Hurt, K.G. and Evans, I. (1980) A Laboratory Study of Rock Cutting,21st US Symposium on Rock Mechanics, University of Missouri-Rolla, pp 112?122.
5. Hurt, K.G. and Evans, I. (1981) Point Attack Tools,Mining Engineer 141, 673?5.