AUCIELLO, N.M. Natural Frequencies of a Cantilever Timoshenko Beam With a Tip Mass. Engineering Transactions, [S. l.], v. 43, n. 1-2, p. 19–26, 1995. Disponível em: http://et.ippt.gov.pl/index.php/et/article/view/1482. Acesso em: 17 jan. 2026.