VALIDATION OF DERIVED EQUATION USING ENERGY TECHNIQUE FOR CALCULATING THE CRITICAL BUCKLING LOAD FOR INTERMEDIATE AND LONG COLUMNS. مجلة الهندسة والتنمية المستدامة, [S. l.], v. 20, n. 4, p. 217–237, 2016. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/608.. Acesso em: 3 2024.