@article {1306,
	title = {Expansion of Sphagnum fallax in bogs: striking the balance between N and P availability},
	volume = {25},
	year = {2003},
	pages = {83-90},
	author = {Limpens, J. and Tomassen, H.B.M. and Berendse, F.}
}
@article {1508,
	title = {Effects of nutrient addition and acidification on plant species diversity and seed germination in heathland.},
	volume = {39},
	year = {2002},
	pages = {937-948},
	author = {Roem, W.J. and Klees, H. and Berendse, F.}
}
