Berger, W. H.; Wefer, G. (2002): On the reconstruction of upwelling history; Namibia upwelling in context. Elsevier, Amsterdam, Netherlands, In: Christensen, Beth A. (editor), Giraudeau, Jacques (editor), Neogene and Quaternary evolution of the Benguela coastal upwelling system, 180 (1-4), 3-28, georefid:2002-026681