1. Achermann, B., & Bobbink, R. (Eds.). (2003). Empirical critical loads for nitrogen: Expert workshop, Berne, 11–13 November 2002. Swiss Agency for the Environment, Forests and Landscape.
2. Aerts, R., & Berendse, F. (1988). The effect of increased nutrient availability on vegetation dynamics in wet heathlands. Vegetatio, 76, 63–69.
3. Baczkowski, A. J., Joanes, D. N., & Shamia, G. M. (1997). Properties of a generalized diversity index. Journal of Theoretical Biology, 188, 207–213.
4. Bal, D., Beije, H. M., Hoogeveen, Y. R., Jansen, S. R. J., & van de Reest, P. J. (1995). Handboek natuurdoeltypen in Nederland. (Rapport IKC-N 11). Wageningen: IKC-Natuurbeheer.
5. Belyazid, S., Kurz, D., Braun, S., Sverdrup, H., Rihm, B., & Hettelingh, J. P. (2011). A dynamic modelling approach for estimating critical loads of nitrogen based on plant community changes under a changing climate. Environmental Pollution, 159, 789–801.