Glock, N.; Eisenhauer, A.; Liebetrau, V.; Wiedenbeck, M.; Hensen, C.; Nehrke, G. (2012): EMP and SIMS studies on Mn/Ca and Fe/Ca systematics in benthic foraminifera from the Peruvian OMZ: a contribution to the identification of potential redox proxies and the impact of cleaning protocols. Biogeosciences, 9, 1, 341-359.