GOETHALS, Peter, and Niels DE PAUW. “Development of a Concept for Integrated Ecological River Assessment in Flanders, Belgium”. Journal of Limnology 60, no. s1 (September 1, 2001): 7–16. Accessed April 16, 2024. https://www.jlimnol.it/jlimnol/article/view/jlimnol.2001.s1.7.