@article {244,
	title = {Plants as Biomonitors of Atmospheric Pollution: A review of their Potential Use in Integrated Pollution Control},
	year = {2000},
	pages = {p318},
	author = {Pakeman, R. and Osborn, D. and Hankard, P.}
}
@article {243,
	title = {Potential Uses of Biomonitoring in Pollution Control - An Introductory Guide},
	year = {2000},
	pages = {p319},
	author = {Osborn, D. and Weeks, J.M. and Hankard, P. and Dale, L.}
}
