SESTELO, M.; VILLANUEVA, N. M.; MEIRA-MACHADO, L.; ROCA-PARDIÑAS, J. npregfast: An R Package for Nonparametric Estimation and Inference in Life Sciences. Journal of Statistical Software, [S. l.], v. 82, n. 12, p. 1–27, 2017. DOI: 10.18637/jss.v082.i12. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v082i12. Acesso em: 29 jan. 2022.