1. R. J. Southgate, ‘Precision Casting at Rolls Royce’,Metals and Materials Journal, p. 602, (1986).
2. J. Hockin, ‘Controllable causes of dimensional variations in Investment Castings’, BICTA, British Investiment Casters Technical Association, (May 1971).
3. H. T. Bidwell, ‘Investment Casting’, The Machnery Publications Co Ltd, (1969). ‘Russian Castings Production’, The British Cast Iron Research Association, (March 1973).Proceedings of Annual BICTA conferences dated (1960, 1963, 1964, 1971). Unpublished data at the PCF, Rolls Royce plc, Derby.