ISMAIL, Mahmud Rasheed; JWEEG, Mohsin Juber. Natural Frequencies of Multi-Irregular Span Beams under Elastic Supports by Modal Analysis Method. Al-Nahrain Journal for Engineering Sciences, [S. l.], v. 18, n. 2, p. 284–293, 2017. Disponível em: https://nahje.com/index.php/main/article/view/190.. Acesso em: 23 nov. 2024.