THEUSSL, S.; SCHWENDINGER, F.; HORNIK, K. ROI: An Extensible R Optimization Infrastructure. Journal of Statistical Software, [S. l.], v. 94, n. 15, p. 1–64, 2020. DOI: 10.18637/jss.v094.i15. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v094i15. Acesso em: 26 nov. 2022.