Ramos, J L Sustained Photoproduction of Ammonia from Dinitrogen and Water by the Nitrogen-Fixing Cyanobacterium Anabaena sp. Strain ATCC 33047. [electronic resource] - Applied and environmental microbiology Jul 1984 - 114-8 p. digital Publication Type: Journal Article ISSN: 0099-2240 Standard No.: 10.1128/aem.48.1.114-118.1984 doi