BRAUN, M. trustOptim: An R Package for Trust Region Optimization with Sparse Hessians. Journal of Statistical Software, [S. l.], v. 60, n. 4, p. 1–16, 2014. DOI: 10.18637/jss.v060.i04. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v060i04. Acesso em: 2 dec. 2022.