Platteeuw, M. and Henkens, R. J. H. G. (1997) “Waterbirds and aquatic recreation at Lake Ijsselmeer, The Netherlands: the potential for conflict”, Wildfowl, pp. 210–224. Available at: https://tidsskrift.dk/Wildfowl/article/view/154111 (Accessed: 17 December 2025).