1.
de Leeuw J, Hornik K, Mair P. Isotone Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA) and Active Set Methods. J. Stat. Soft. [Internet]. 2009 Oct. 21 [cited 2024 Nov. 21];32(5):1-24. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v032i05