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	author = {Power, S. and Ashmore, M.R. and Ling, K.A.}
}
@article {661,
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	pages = {295-306},
	author = {Ling, K.A. and Power, S. and Ashmore, M.R.}
}
@article {289,
	title = {Acid Rain and Trees},
	journal = {Focus on Nature Conservation No. 19. },
	year = {1987},
	author = {Ling, K.A. and Ashmore, M.R.}
}
