BEHNCKE, H.; AL-NASSIR, S. On the Harvesting of Age Structured of Fish Populations. Communications in Mathematics and Applications, [S. l.], v. 8, n. 2, p. 139–156, 2017. DOI: 10.26713/cma.v8i2.705. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/705. Acesso em: 5 may. 2024.