AHMEDA, S.; IKRAIAM, F. The Variable Mass- Spring System and the Bessel’s Function. Journal of Pure & Applied Sciences , [S. l.], v. 22, n. 3, p. 197–200, 2023. DOI: 10.51984/jopas.v22i3.2771. Disponível em: https://sebhau.edu.ly/journal/jopas/article/view/2771. Acesso em: 16 aug. 2024.