Nguyen, L.T. et al. 2026. NONLINEAR STABILITY AND IMPERFECTION SENSITIVITY ANALYSIS OF HYBRID TIMBER BEAMS FORMULATED VIA A MECHANISM-BASED ENERGY APPROACH. International Journal for Computational Civil and Structural Engineering. 22, 2 (Jun. 2026), 149–159. DOI:https://doi.org/10.22337/2587-9618-2026-22-2-149-159.