Molina, J.C. and Bertolino Junior, R. 2008. Numeric analysis of the global stiffness of group purlin-sheeting in lateral steel panels. Semina: Ciências Exatas e Tecnológicas. 29, 2 (Dec. 2008), 177–188. DOI:https://doi.org/10.5433/1679-0375.2008v29n2p177.