@article {670,
	title = {The Lichens Reported from the Guianas before 1987},
	journal = {Willdenowia},
	volume = {17},
	number = {1/2},
	year = {1988},
	pages = {193-228},
	chapter = {193},
	url = {http://www.jstor.org/stable/pdfplus/3996217.pdf},
	author = {Hekking, W.H.A. and Harrie J. M. Sipman}
}
