@Article{bgd-4-1-2007, AUTHOR = {Henderiks, J. and Rickaby, R. E. M.}, TITLE = {Algal constraints on the Cenozoic history of atmospheric CO2?}, JOURNAL = {Biogeosciences Discussions}, VOLUME = {4}, YEAR = {2007}, NUMBER = {1}, PAGES = {1--11}, URL = {http://www.biogeosciences-discuss.net/4/1/2007/}, ISSN = {1810-6277} }