Ecological Archives E093-238-A2
Anne Chao, Lou Jost. 2012. Coverage-based rarefaction and extrapolation: standardizing samples by completeness rather than size. Ecology 93:2533–2547. http://dx.doi.org/10.1890/11-1952.1
Appendix B. An unbiased estimator for the expected sample coverage in coverage-based rarefaction.