@book {47,
	title = {The Lichen Flora of Great Britian and Ireland},
	year = {1992},
	publisher = {Natural History Museum Publications},
	organization = {Natural History Museum Publications},
	address = {London},
	author = {O.W. Purvis and D.M. Moore and B.J. Coppins and D.L. Hawksworth and P.W. James}
}
@article {649,
	title = {Lichens Collected on the Arctic Excursion of the 9th International Botanical Congress (Montreal) in 1959},
	journal = {The Bryologist},
	volume = {95},
	number = {4},
	year = {1992},
	pages = {392-405},
	chapter = {392},
	url = {http://www.jstor.org/stable/3243563},
	author = {Thomson, John W. and William A. Weber}
}
@article {648,
	title = {Lichens Collected on an Alaska Highway Expedition in Alaska and Canada},
	journal = {The Bryologist},
	volume = {97},
	number = {2},
	year = {1994},
	pages = {138-157},
	chapter = {138},
	url = {http://www.jstor.org/stable/pdfplus/3243751.pdf},
	author = {Thomson, John W. and Ahti, T}
}
@book {1453,
	title = {Lichens},
	series = {The new naturalist},
	year = {2000},
	pages = {288},
	publisher = {HarperCollins},
	organization = {HarperCollins},
	address = {London},
	isbn = {0002200821},
	author = {Oliver Gilbert}
}
@article {732,
	title = {Index Fungorum [taxonomy information]},
	year = {2008},
	url = {http://www.indexfungorum.org/Names/Names.asp}
}
