@article {72,
	title = {Further notes on European Taxa of the Lichen Genus Leptogium, with emphasis on the small species},
	journal = {The Lichenologist},
	volume = {26},
	number = {1},
	year = {1994},
	pages = {1-29},
	chapter = {1},
	author = {Per M. J{\o}rgensen}
}
