@article {54,
	title = {The Epiphytic Lichens on Quercus in Sardinia (Italy) and Their Value as Ecological Indicators},
	journal = {Englera},
	volume = {24},
	year = {2002},
	pages = {3-457},
	url = {http://www.jstor.org/stable/3776783},
	author = {Zedda, Luciana}
}
