ISMAIL, Mahmud Rasheed; JWEEG, Mohsin Juber. Natural Frequencies of Multi-Irregular Span Beams under Elastic Supports by Modal Analysis Method. Nahrain University College of Engineering Journal, [S. l.], v. 18, n. 2, p. 284–293, 2017. Disponível em: https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/190.. Acesso em: 23 dec. 2024.