DE LEEUW, J.; HORNIK, K.; MAIR, P. Isotone Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA) and Active Set Methods. Journal of Statistical Software, [S. l.], v. 32, n. 5, p. 1–24, 2009. DOI: 10.18637/jss.v032.i05. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v032i05. Acesso em: 10 oct. 2024.