GARDAŠEVIĆ-FILIPOVIĆ, Milanka. A trust region method using subgradient for minimizing a nondifferentiable function. Yugoslav Journal of Operations Research, [S. l.], v. 19, n. 2, p. 249–262, 2009. DOI: 10.2298/YJOR0902249G. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/269. Acesso em: 22 oct. 2025.