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Submitted by admin on Wed, 05/30/2018 - 19:31
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<strong>Clegg, B. and Berrangé, A.R. (1971).</strong> “The development and testing of an impact roller,” <em>Trans. S. Afr. Instn. Civ. Engs.</em> Vol. 13, No. 3, pp. 65-73.