Borgonie, G., A. García-Moyano, D. Litthauer, W. Bert, A. Bester, E. van Heerden, C. Möller, M. Erasmus, and T.C. Onstott. 2011. “Nematoda from the Terrestrial Deep Subsurface of South Africa”. Nature 474: 79-82. doi:10.1038/nature09974.

Lollar, Sherwood, E. van Heerden, T.C. Onstott, and T. Kieft. 2011. “Carbon Cycling in the Deep Crustal Biosphere”. Elements 7: 137. Referenced from www.scopus.com: Carbon cycling in the deep crustal biosphere.

Borgonie, G., B. Linage-Alvarez, A.O. Ojo, S.O.C. Mundle, L.B. Freese, C. Van Rooyen, O. Kuloyo, et al. 2015. “Eukaryotic Opportunists Dominate the Deep-Subsurface Biosphere in South Africa”. Nature Communications 6. doi:10.1038/ncomms9952.

Borgonie, G., B. Linage-Alvarez, A.O. Ojo, S.O.C. Mundle, L.B. Freese, C. Van Rooyen, O. Kuloyo, et al. 2015. “Eukaryotic Opportunists Dominate the Deep-Subsurface Biosphere in South Africa”. Nature Communications 6. doi:10.1038/ncomms9952.

Lollar, B.S., T.C. Onstott, G. Lacrampe-Couloume, and C.J. Ballentine. 2014. “The Contribution of the Precambrian Continental Lithosphere to Global H2 Production”. Nature 516: 379-82. doi:10.1038/nature14017.

Wilkins, M.J., R.A. Daly, P.J. Mouser, R. Trexler, S. Sharma, D.R. Cole, K.C. Wrighton, et al. 2014. “Trends and Future Challenges in Sampling the Deep Terrestrial Biosphere”. Frontiers in Microbiology 5. doi:10.3389/fmicb.2014.00481.

Onstott, T.C., C. Magnabosco, A.D. Aubrey, A.S. Burton, J.P. Dworkin, J.E. Elsila, S. Grunsfeld, et al. 2014. “Does Aspartic Acid Racemization Constrain the Depth Limit of the Subsurface Biosphere?”. Geobiology 12: 1-19. doi:10.1111/gbi.12069.

Wanger, G., D. Moser, M. Hay, S. Myneni, T.C. Onstott, and G. Southam. 2012. “Mobile Hydrocarbon Microspheres from >2-Billion-Year-Old Carbon-Bearing Seams in the South African Deep Subsurface”. Geobiology 10: 496-505. doi:10.1111/j.1472-4669.2012.00340.x.

Borgonie, G., A. García-Moyano, D. Litthauer, W. Bert, A. Bester, E. van Heerden, C. Möller, M. Erasmus, and T.C. Onstott. 2011. “Nematoda from the Terrestrial Deep Subsurface of South Africa”. Nature 474: 79-82. doi:10.1038/nature09974.

Li, L., S. Wei, Sherwood Lollar, B. Wing, T.H. Bui, S. Ono, M.C.Y. Lau Vetter, et al. 2022. “In Situ Oxidation of Sulfide Minerals Supports Widespread Sulfate Reducing Bacteria in the Deep Subsurface of the Witwatersrand Basin (South Africa): Insights from Multiple Sulfur and Oxygen Isotopes”. Earth and Planetary Science Letters 577. doi:10.1016/j.epsl.2021.117247.

Hamilton-Brehm, S.D., L.E. Stewart, M. Zavarin, M. Caldwell, P.A. Lawson, T.C. Onstott, J. Grzymski, et al. 2019. “Thermoanaerosceptrum Fracticalcis Gen. Nov. Sp. Nov., a Novel Fumarate-Fermenting Microorganism from a Deep Fractured Carbonate Aquifer of the US Great Basin”. Frontiers in Microbiology 10. doi:10.3389/fmicb.2019.02224.

Magnabosco, C., P.H.A. Timmers, M.C.Y. Lau, G. Borgonie, B. Linage-Alvarez, O. Kuloyo, R. Alleva, et al. 2018. “Fluctuations in Populations of Subsurface Methane Oxidizers in Coordination With Changes in Electron Acceptor Availability”. FEMS Microbiology Ecology 94. doi:10.1093/femsec/fiy089.