1. Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
2. Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
3. Paqell B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
4. Mathematical and Statistical Methods − Biometris, Wageningen University & Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands