References
- Anonymous, 1985: Indicative Programme Water 1985–1989. Dutch Ministry of Transport and Water Management and Dutch Ministry of Housing, Physical Planning and Environment, The Hague, The Netherlands, (in Dutch).
- Anonymous, 1988: Ecological standard objectives for Dutch surface waters. Dutch Commission for Enforcement of the Water Pollution Act (CUWVO), The Hague, The Netherlands. (in Dutch).
- Jongman, R. H. G., ter Braak, C. J. F. & van Tongeren, O. F. R., 1987: Data analysis in community and landscape ecology. PUDOC, Wageningen.
- Peeters, E. T. H. M. & Gardeniers, J. J. P., 1992: Ecological assessment method for running waters based upon macro-invertebrates, (in Dutch) (in press).
- Roos, C., Gardeniers, J. J. P., Roijackers, R. M. M. & Peeters, E. T. H. M., 1991: Ecological assessment of Dutch inland waters: Philosophy and preliminary results. — Verh. Internat. Verein. Limnol. 24: 2104–2106.
- Tolkamp, H. H. & Gardeniers, J. J. P., 1988: The development of biological water quality assessment in The Netherlands. — Hydrobiol. Bull. 22(1): 87–91.