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2. Seminar on “Magnox Power Stations — Duct Inspection and Repair Programme”. Inst. Mech. Eng, London, 10th Feb. 1983. Also reported by J. Varley in Nucl. Eng. Int. 28 : 34–38 (1983).
3. W. Marshall (Chairman), Report of a study Group on the Integrity of PWR Pressure Vessels, UKAEA (1976).
4. W. Marshall (Chairman), An assessment of the integrity of PWR pressure vessels — second report by a study group, UKAEA, (March, 1982).
5. M.J. Whittle, An assessment of the implications of the Marshall study Group Report for NDT. NDT Int. 15 : 321–327 1982.