@article {67,
	title = {Cyanophyte Cephalodia in the Lichen Genus <em>Nephroma</em>},
	journal = {American Journal of Botany},
	volume = {58},
	number = {6},
	year = {1971},
	pages = {562-568},
	chapter = {562},
	author = {Jordan, William Paul and Fred. R. Rickson}
}
@article {630,
	title = {Fine Structure of the Blue-Green Phycobiont and Its Relation to the Mycobiont in Two Gonohymenia Lichens},
	journal = {Arch. Mikrobiol.},
	volume = {76},
	year = {1971},
	pages = {103-113},
	chapter = {103},
	url = {http://www.springerlink.com/content/v614g4xh57692663/fulltext.pdf},
	author = {Paran, Navah and Y. Ben-Shaul and Margalith Galun}
}
