;Empey, Julia A. (University of Cambridge, UK),Kilbourn, Russell J.A. (Wilfrid Laurier University, Canada)
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Russell J. a. Kilbourn(EDI)
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Wessel Pienaar/ John Vogt/ Kobus Cronje/ Peter Kilbourn/ Ulrike Kussing
(1)
;Empey, Julia A.,Kilbourn, Russell J.A.
(1)