@inbook {2413,
	title = {Caloplaca},
	booktitle = {Lichens of Great Britain \& Ireland},
	year = {2009},
	pages = {245-273},
	publisher = {British Lichen Society},
	organization = {British Lichen Society},
	address = {London},
	author = {Fletcher, A. and Laundon, J.R.}
}
@article {774,
	title = {The Caloplaca holocarpa group in the Nordic countries, except Iceland},
	journal = {Lichenologist},
	volume = {41},
	year = {2009},
	pages = {111-130},
	doi = {10.1017/S0024282909008135 },
	author = {Arup, U.}
}
