Bi-Basis Function Second Derivative Block Method for the Solution of Optimal Control Problems. International Journal of Development Mathematics (IJDM), [S. l.], v. 1, n. 1, 2024. DOI: 10.62054/ijdm/0101.02. Disponível em: https://ijdm.org.ng/index.php/Journals/article/view/30.. Acesso em: 27 aug. 2026.