Trinh, M. T., T. D. Nguyen, Q. T. Pham, A. N. Pham, and D. V. Dinh. “Hydro-Forming of U-Shaped Parts With Branches”. Engineering, Technology & Applied Science Research, vol. 15, no. 1, Feb. 2025, pp. 19226-31, doi:10.48084/etasr.9227.