@article {1518,
	title = {Recovery of macroinvertebrate species richness in acidified upland waters assessed with a field toxicity model},
	volume = {37},
	year = {2014},
	pages = {341-350},
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}
@article {743,
	title = {Review of the impact of current and future acid deposition in Wales},
	year = {1993},
	publisher = {Institute of Terrestrial Ecology},
	address = {Bangor},
	author = {Reynolds, B. and Ormerod, S.J.}
}
@article {801,
	title = {A Review of the Likely Causal Pathways Relating the Reduced Density of Breeding Dippers Cinclus-Cinclus to the Acidification of Upland Streams},
	volume = {78},
	year = {1992},
	pages = {49-55},
	author = {Tyler, S.J. and Ormerod, S.J.}
}
