Barker, H A On the Rôle of Carbon Dioxide in the Metabolism of Clostridium Thermoaceticum. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Apr 1944 - 88-90 p. digital Publication Type: Journal Article ISSN: 0027-8424 Standard No.: 10.1073/pnas.30.4.88 doi