@article {1525,
	title = {Stomata are less responsive to environmental stimuli in high background ozone in Dactylis glomerata and Ranunculus acris.},
	journal = {Environmental Pollution},
	volume = {175},
	year = {2013},
	pages = {82-91},
	author = {Wagg, S. and Mills, G. and Hayes, F. and Wilkinson, S. and Davies, W.J.}
}
@article {1526,
	title = {Reduced soil water availability did not protect two competing grassland species from the negative effects of increasing background ozone.},
	journal = {Environmental Pollution},
	volume = {165},
	year = {2012},
	pages = {91-99},
	author = {Wagg, S. and Mills, G. and Hayes, F. and Wilkinson, S. and Cooper, D. and Davies, W.J.}
}
@article {1487,
	title = {Chronic exposure to increasing background ozone impairs stomatal functioning in grassland species.},
	journal = {Global Change Biology},
	volume = {15},
	year = {2009},
	pages = {1522-1533},
	author = {Mills, G. and Hayes, F. and Wilkinson, S. and Davies, W.J.}
}
