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Published online by Cambridge University Press: 05 May 2011
1. Figures 13 to 18 should be deleted from the paper.
2. The first sentence on page 118, “The corresponding and traction field at r = 1, 10 and 20 for the case of m = 0 are depicted in Figs. 12(a), (b) and (c),” should be modified as: “The corresponding radiation patterns of displacement and traction field at ksr = 1, 10 and 20 for the case of m = 0 are depicted in Figs. 12(a), (b) and (c), respectively.”