@book {931,
	title = {The Lichen Flora of Great Britain and Ireland.},
	year = {1992},
	pages = {710},
	publisher = {Natural History Museum Publications \& British Lichen Society},
	organization = {Natural History Museum Publications \& British Lichen Society},
	address = {London},
	author = {Purvis, O. W. and Coppins, B. J. and Hawksworth, D. L. and James, P. W. and Moore, D. M.}
}
@article {912,
	title = {Foliicolous lichens--A contribution to the knowledge of the lichen flora of Costa Rica, Central America.},
	journal = {Beih. Nova Hedwigia},
	volume = {104},
	year = {1992},
	pages = {1-179},
	author = {Lucking, R.}
}
@article {907,
	title = {Quaternary vegetation change and dune formation on Bermuda: a discussion.},
	journal = {Global Ecology \& Biogeography Letters},
	volume = {2},
	year = {1992},
	pages = {65-70},
	author = {Herwitz, S. R.}
}
@article {892,
	title = {Notes on the variation of Caloplaca obscurella.},
	journal = {Graphis scripta},
	volume = {5},
	year = {1992},
	pages = {65-68},
	author = {Arvidsson, L. and Martinsson, P.-O.}
}
