INCREASING THE EFFICIENCY OF THE ROOF PURLIN SYSTEM. Collection of scientific works «Modern structures of metal and wood», [S. l.], n. 25, p. 65–71, 2021. DOI: 10.31650/2707-3068-2021-25-65-71. Disponível em: https://www.msmw-odaba.org.ua/index.php/msmw/article/view/Vol-21-8. Acesso em: 15 jul. 2026.