@article {612,
	title = {Critical loads of acidity for surface waters - can the ANC limit be considered variable? },
	journal = {Water, Air and Soil Pollution},
	volume = {85},
	year = {1995},
	pages = {2419-2424},
	author = {Henriksen, A. and Posch, M. and Hultberg, H. and Lien, L.}
}
