Robert M. Morris, Michael S. Rappé, Stephanie A. Connon, Kevin L. Vergin, William A. Siebold, Craig A. Carlson, Stephen J. Giovannoni,
SAR11 clade dominates ocean surface bacterioplankton communities Nature. ,vol. 420, pp. 806- 810 ,(2002) ,
10.1038/NATURE01240