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68 Robert L. Taylor, Eugenio Oñate ˜ and Pere-Andreu Ubach
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non-linear finite element analysis. Computers and Structures 18(6):1099–1114
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of pressure boundary loading. Communications in Applied Numerical Methods
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Volume 1, Butterworth-Heinemann, Oxford, 5th edition
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University of California, Berkeley, http://www.ce.berkeley.edu/ ˜ rlt