@book{HartjeKlaphake2006, author = {Volkmar Hartje and Axel Klaphake}, title = {Implementing the Ecosystem Approach for freshwater ecosystems - a case study on the Water Framework Directive of the European Union}, publisher = {Deutschland / Bundesamt f{\"u}r Naturschutz}, address = {Bonn}, organization = {Bundesamt f{\"u}r Naturschutz}, url = {https://nbn-resolving.org/urn:nbn:de:hbz:b219-6101}, pages = {65 Seiten}, year = {2006}, language = {de} }