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by Dr. Derek Roger
by Palastanga, Nigel; Field, Derek; Soames, Roger
by Osbourn, Derek; Greeno, Roger
by Abbott, Derek; Davies, Paul C. w.; Pati, Arun K.; et al.
by Moore, Roger, Sir; Perkins, Derek
by Moorhouse, Roger; Perkins, Derek
by Roger, Derek, Ph.D.; Petrie, Nick; Anthony, Michael