Borchers S.L., Schnetger B., Böning P. & Brumsack H.-J. (2005) Geochemical signatures of the Namibian diatom belt: Perennial upwelling and intermittent anoxia. Geochemistry Geophysics Geosystems 6 (6), doi:10.1029/2004GC000886

Böning P., Brumsack H.-J., Böttcher M. E., Schnetger B., Kriete C., Kallmeyer J., and Borchers S. L. (2004) Geochemistry of Peruvian near-surface sediments. Geochimica et Cosmochimica Acta 68(21), 4429-4451.

Schnetger, B., Brumsack, H.-J., Schale, H., Hinrichs, J., and Dittert, L., (2000). Geochemical characteristics of deep-sea sediments from the Arabian Sea: a high-resolution study. Deep Sea Research II, 47, 2735-2768.