Sistermans W., Hummel H. 2003: Biogeography Scheldt Estuary. Netherlands Institute of Ecology; Centre for Estuarine and Marine Ecology, Netherlands. Metadata available at http://mda.nioo.knaw.nl/imis.php?module=dataset&dasid=496. https://marineinfo.org/id/dataset/496
Taxonomy database of the Western and Sea Scheldt from the of the Netherlands Institute of Ecology; Centre for Estuarine and Marine Ecology; Department of Ecosystem Studies