Erratum to Christian Mikutta, Robert Mikutta, Steeve Bonneville, Friedrich Wagner, Andreas Voegelin, Iso Christl, Ruben Kretzschmar (2008), “Synthetic coprecipitates of exopolysaccharides and ferrihydrite. Part I: Characterization,” Geochimica et Cosmochimica Acta 72, 1111–1127