PERME, M. P.; PAVLIC, K. Nonparametric Relative Survival Analysis with the R Package relsurv. Journal of Statistical Software, [S. l.], v. 87, n. 8, p. 1–27, 2018. DOI: 10.18637/jss.v087.i08. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v087i08. Acesso em: 8 aug. 2022.