Media type: E-Article Title: The Continuing Puzzle of the Great Oxidation Event Contributor: Sessions, Alex L.; Doughty, David M.; Welander, Paula V.; Summons, Roger E.; Newman, Dianne K. imprint: Elsevier BV, 2009 Published in: Current Biology Language: English DOI: 10.1016/j.cub.2009.05.054 ISSN: 0960-9822 Keywords: General Agricultural and Biological Sciences ; General Biochemistry, Genetics and Molecular Biology Origination: Footnote: Access State: Open Access