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	year = {2000},
	pages = {125-140},
	author = {Curtis, C. and Allott, T. and Hall, J. and Harriman, R. and Helliwel, R. and Hughes, M. and Kernan, M. and Reynolds, B. and Ullyett, J.}
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@inbook {602,
	title = {Critical Loads: Concepts and Applications},
	booktitle = {ITE Symposium},
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	year = {1993},
	pages = {103-108},
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}
