Ciocan, Ovidiu, and Eugen Ghiță. “Process and Tool for Machining of Small Size Spherical Surfaces”. Annals of ”Dunarea de Jos” University of Galati, Fascicle V, Technologies in machine building 24 (September 15, 2006): 76-78. Accessed May 2, 2024. https://www.gup.ugal.ro/ugaljournals/index.php/tmb/article/view/2075.