« Complementary theorems of surface enwrapping expressed in graphical form ». Annals of ”Dunarea de Jos” University of Galati, Fascicle V, Technologies in machine building 32 (novembre 9, 2014): 73–78. Consulté le novembre 2, 2026. https://ojs.ugal.ro/index.php/tmb/article/view/1554.