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	title = {Biological significance of UK critical load exceedance estimates for flowing waters: assessments of dipper Cinclus cinclus populations in Scotland},
	journal = {Journal of Applied Ecology },
	volume = {33},
	year = {1996},
	pages = {1065-1076},
	author = {Logie, J.W. and Bryant, D.M. and Howell, D.l. and Vickery, J.A.}
}
@article {745,
	title = {): A survey of the threat of surface water acidification to the nature conservation interest of fresh-waters on Sites of Special Scientific Interest in Britain},
	journal = {Aquatic Conservation - Marine and Freshwater Ecosystems },
	volume = {4},
	year = {1994},
	pages = {31-44},
	author = {Rimes, C.A. and Farmer, A.M. and Howell, D.l.}
}
