Linh, N.H. et al. 2026. Hybrid NSGA-II–MARCOS Optimization of a Dual-Input Spur Gearbox: Targeting Efficiency and Minimal Length. Engineering, Technology & Applied Science Research. 16, 2 (Apr. 2026), 33426–33433. DOI:https://doi.org/10.48084/etasr.16967.