G.-A. Costin, C. Afteni, I. Iacob, V. Păunoiu, and N. Baroiu, “AN OVERVIEW ON SHEET METAL HYDROFORMING TECHNOLOGIES”, Annals of ”Dunarea de Jos” University of Galati, Fascicle V, Technologies in machine building, vol. 36, pp. 55-62, Jul. 2024.