SMITH, C. D.; PONTIUS, J. S. Jackknife Estimator of Species Richness with S-PLUS. Journal of Statistical Software, [S. l.], v. 15, n. 3, p. 1–12, 2005. DOI: 10.18637/jss.v015.i03. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v015i03. Acesso em: 30 nov. 2022.