J. KENT HSIAO. Computation of Fundamental Periods for Moment Frames Using a Hand-Calculated Approach. Electronic Journal of Structural Engineering, [S. l.], v. 9, p. 16–28, 2009. DOI: 10.56748/ejse.9114. Disponível em: https://ejsei.com/EJSE/article/view/114. Acesso em: 22 nov. 2024.