1. R. D. LYLE, “Efficient Use of Steam,” His Majesty’s Stationery Office, London, 1947.
2. L. S. MARKS, “Mechanical Engineer’s Handbook,” 5th ed., p. 335. McGraw-Hill, New York, 1951.
3. PWR Hazards Summary Report. Westinghouse Electric Corp. WAPD-SC-541 (1957).