The simplest amplitude-period formula for non-conservative oscillators. Reports in Mechanical Engineering, [S. l.], v. 2, n. 1, p. 143–148, 2021. DOI: 10.31181/rme200102143h. Disponível em: https://mail.rme-journal.org/index.php/asd/article/view/45.. Acesso em: 19 nov. 2024.