@article {848,
	title = {Some effects of N on ectomycorrhizal diversity of Scots pine (Pinus sylvestris L.) in northeastern Germany. },
	volume = {116},
	year = {1999},
	pages = {135-140},
	author = {W{\"o}llecke, J. and Munzenberger, B. and Huttl, R.F.}
}
