@book {534,
	title = {Red Data Books of Britain and Ireland: lichens},
	series = {Britain},
	volume = {1},
	year = {1996},
	publisher = {Joint Nature Conservation Committee},
	organization = {Joint Nature Conservation Committee},
	address = {Peterborough},
	author = {Church, J.M. and Coppins, B.J. and Gilbert, O.L. and James, P. and Stewart, N.F.}
}
