Takai, K., D.P. Moser, M. Deflaun, T.C. Onstott, and J.K. Fredrickson. 2001. “Archaeal Diversity in Waters from Deep South African Gold Mines”. Applied and Environmental Microbiology 67: 5750-60. doi:10.1128/AEM.67.21.5750-5760.2001. Reference Link
Takai, K., D.P. Moser, T.C. Onstott, N. Spoelstra, S.M. Pfiffner, A. Dohnalkova, and J.K. Fredrickson. 2001. “Alkaliphilus Transvaalensis Gen. nov., Sp. Nov., an Extremely Alkaliphilic Bacterium Isolated from a Deep South African Gold Mine”. International Journal of Systematic and Evolutionary Microbiology 51: 1245-56. doi:10.1099/00207713-51-4-1245. Reference Link