@article {1507,
	title = {Ozone effects on the ultrastructure of peatland plants: Sphagnum mosses, Vaccinium oxycoccus, Andromeda polifolia and Eriophorum vaginatum.},
	volume = {94},
	year = {2004},
	pages = {623-634},
	author = {Rinnan, R. and Holopainen, T.}
}
