Nicholas L. Swanson-Hysell, Adam C. Maloof, Daniel J. Condon, Gawen R.T. Jenkin, Mulugeta Alene, Marissa M. Tremblay, Tadele Tesema, Alan D. Rooney, Bereket Haileab,
Stratigraphy and geochronology of the Tambien Group, Ethiopia: Evidence for globally synchronous carbon isotope change in the Neoproterozoic Geology. ,vol. 43, pp. 323- 326 ,(2015) ,
10.1130/G36347.1