@article {297,
	title = {Nitrogen saturation in a long-term forest experiment with annual additions of nitrogen},
	journal = {Water, Air and Soil Pollution},
	volume = {85},
	year = {1995},
	pages = {1683-1688},
	author = {Tamm, C.O. and Aronsson, A. and Popovic, B.}
}
