Ferro I., Soetaert K. 2002: Cycling of iron and manganese in freshwater, estuarine and deep sea sediments. Netherlands Institute of Ecology; Centre for Estuarine and Marine Ecology, Netherlands. Metadata available at http://mda.nioo.knaw.nl/imis.php?module=dataset&dasid=1115, meer
Ferro, I. (2003). Cycling of iron and manganese in freshwater, estuarine and deep sea sediments. PhD Thesis. Rijksuniversiteit Groningen: Groningen. 162 pp., meer
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