Кухарь, В.В., and А.Г. Присяжный. 2016. “Improved of Manufacturing Process of ‘eye-Bolt’ Forgings by Twin Die-Forging With Prior Profiling of Billets by Buckling”. Problems of Tribology 77 (3):36-44. https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/461.