ET. AL., A. N. A. . Solving Vibrating Spring Problem Using Variational Formulation. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 5, p. 1472–1476, 2021. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/2114. Acesso em: 7 may. 2024.