OLTEANU, O. . Applied Optimization and Approximation. International Journal of Mathematical Research, [S. l.], v. 3, n. 4, p. 37–48, 2014. DOI: 10.18488/journal.24/2014.3.4/24.4.37.48. Disponível em: https://archive.conscientiabeam.com/index.php/24/article/view/2170. Acesso em: 6 may. 2024.