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