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2. F.L. LaQue: Marine Corr., Wiley, New York, NY, 1975.
3. Rules for Building and Classing Steel Vessels, American Bureau of Shipping, Paramus, NJ, 1990, sect. 37/2.
4. Rules and Regulations for the Classification of Shipping, Lloyds Resister of Shipping, London, 1978, part 5, ch. 7, sects. 2.1 and 3.1 and part 2, ch. 9, sect. 1.
5. C.F. Zanis and R.J. Ferrara: AFS Trans., 1974, vol. 53, pp. 71–78.