References
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- O. C. ZIENKIEWICZ and Y. K. CHEUNG: Engineer, Sept. 1965, 507.
- A. WEXLER: Trans. Microwave Theory Tech., 1969, MT T-17, 416
- E. L. WILSON and R. E. NICKELL: Nucl. Eng. Design, 1966, 4, 276.
- P. N. BERG: 'Handbook of engineering mechanics', (ed. W. Flugge), Chap. 16; 1962, London, McGraw-Hill.
- E. L. WILSON and R. W. CLOUGH: Symp. on 'The use of computers in civil engineering', 1962, Lisbon.
- K. FULLARD: Central Electricity Generating Board Rep. RD/B/N 2432, 1972.