@book {689,
	title = {Lichens of Antarctica and South Georgia: a guide to their identification and ecology},
	year = {2001},
	publisher = {Cambridge University Press},
	organization = {Cambridge University Press},
	issn = {0521662419, 9780521662413},
	author = {Dag Olav {\O}vstedal and Ronald Ian Lewis Smith}
}
@article {691,
	title = {Further additions to the lichen flora of Antarctica and South Georgia},
	journal = {Nova Hedwigia},
	volume = {88},
	number = {1-2},
	year = {2009},
	month = {02/2009},
	pages = {157-168},
	doi = {10.1127/0029-5035/2009/0088-0157 0029-5035/09/0088-0157},
	author = {Dag O. {\O}vstedal and Ronald Ian Lewis Smith}
}
