@article {4105,
	title = {Taxonomic concepts of lichenicolous Arthonia species},
	journal = {Bibliotheca Lichenologica},
	volume = {68},
	year = {1997},
	pages = {1-17},
	author = {Grube, M. and Matzer, M.}
}
@article {2113,
	title = {Lichens and lichenicolous fungi from New Guinea},
	journal = {Bibliotheca Lichenologica},
	volume = {64},
	year = {1997},
	pages = {1-220},
	isbn = {ISBN 978-3-443-58043-8},
	author = {Aptroot, A. and Diederich, P. and S{\'e}rusiaux, E. and Sipman, H.J.M.}
}
