1. European Commission, Directive 2000/60/EC of the European Parliament and of the Council establishing a framework for Community action in the field of water policy, 2000.
2. European Commission, Directive 2008/105/EC of the European Parliament and of the Council on environmental quality standards in the field of water policy, amending and subsequently repealing Council Directives 82/176/EEC, 83/513/EEC, 84/156/EEC, 84/491/EEC, 86/280/EEC and amending Directive 2000/60/EC, 2008.
3. River Basin Community (FGG) Elbe: Hintergrundpapier zur Ableitung der überregionalen Bewirtschaftungsziele für die Ober-flächengewässer im deutschen Teil der Flussgebietsgemeinschaft Elbe für den Belastungsschwerpunkt Schadstoffe (Background document on the supraregional management objectives in the German part of the River Basin Community Elbe for contaminants), 2009 (www.mugv.brandenburg.de/cms/.../schwebst.pdf).
4. LAWA-Expert Group “QHF”: Fließgewässer der Bundesrepublik Deutschland – Schwebstoffuntersuchungen – Empfehlungen (Water courses of the Federal Republic of Germany, Investigations on suspended particulate matter – Recommendations), 1996.
5. Uncertainties in selected surface water quality data