@article {656,
	title = {Spatial Patterns of Photobiont Diversity in Some Nostoc-Containing Lichens},
	journal = {New Phytologist},
	volume = {146},
	number = {2},
	year = {2000},
	pages = {291-299},
	chapter = {291},
	url = {http://www.jstor.org/stable/pdfplus/2588978.pdf},
	author = {Paulsrud, Per and Rikkinen, Jouko and Peter Lindbald}
}
@article {658,
	title = {Cyanobiont Specificity in Some Nostoc-Containing Lichens and in a Peltigera aphthosa Photosymbiodeme},
	journal = {New Phytologist},
	volume = {139},
	number = {3},
	year = {1998},
	pages = {517-524},
	chapter = {517},
	url = {http://www.jstor.org/stable/pdfplus/2588602.pdf},
	author = {Paulsrud, Per and Rikkinen, Jouko and Peter Lindbald}
}
