KATZ, R.; DELRIEUX, C. Boundary extraction through gradient-based evolutionary algorithm. Journal of Computer Science and Technology, [S. l.], v. 3, n. 01, p. p. 7–12, 2003. Disponível em: https://journal.info.unlp.edu.ar/JCST/article/view/946. Acesso em: 27 sep. 2022.