Sogin, M. L., Morrison, H. G., Huber, J. A., Welch, D. M., Huse, S. M., Neal, P. R., Arrieta, J. M., & Herndl, G. J. (2006). Microbial diversity in the deep sea and the underexplored “rare biosphere.” Proceedings of the National Academy of Sciences, 103(32), 12115–12120. https://doi.org/10.1073/pnas.0605127103