@article {1329,
	title = {Lichenized unicellular cyanobacteria fix nitrogen in the light},
	journal = {Canadian Journal of Botany},
	volume = {87},
	number = {10},
	year = {2007},
	pages = {1003-1006},
	author = {Crittenden, P.D. and Llimona, X. and Sancho, L.G.}
}
