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3120 documents found.

Published: | Transport and Road Research Laboratory TRRL TRL, Overseas Unit & United Nations Economic Commission for Africa UNECA
Published: | Leake, G.R. May, A.D. & Parry, T.
Published: | Lines, C.J. & Castelijn, H.A.
Published: | Astrop, A. Balcombe, R.J. & Finch, D.J.