@booklet {1418,
	year = {Submitted},
	keywords = {af(st)y, air-pollution, aot40, critical flux versus exposure, exposure indexes, gas-exchange, lettuce, plants, protect vegetation, responses, spring wheat, standard, stomatal conductance, white clover},
	author = {Goumenaki, E. and Fernandez, I. G. and Papanikolaou, A. and Papadopoulou, D. and Askianakis, C. and Kouvarakis, G. and Barnes, J.}
}
@article {1452,
	title = {Derivation of ozone flux-yield relationships for lettuce: a key horticultural crop.},
	journal = {Environmental Pollution},
	volume = {146},
	year = {2007},
	pages = {699-706},
	author = {Goumenaki, E. and Fernandez, I. G. and Papanikolaou, A. and Papadopoulou, D. and Askianakis, C. and Kouvarakis, G. and Barnes, J.}
}
