@article {669,
	title = {Condition of Scots Pine fine roots and mycorrhiza after fungicide application and low-level ozone exposure in a 2-year field experiment},
	journal = {Trees},
	volume = {12},
	year = {1988},
	pages = {347-355},
	author = {Manninen, A.M. and Laatikainen, T. and Holopainen, T.}
}
