%0 Journal Article %J Geochimica et Cosmochimica Acta %D 2007 %T Sulfur isotope insights into microbial sulfate reduction: when microbes meet models %A Johnston, David T. %A Farquhar, J. %A D.E. Canfield %B Geochimica et Cosmochimica Acta %V 71 %P 3929-3947 %G eng %N 16