Поддубный, И., В. Кубич, and А. Коробочка. “ Wear Resistance of the Strengthened Facet of the Valve and Parame-Tres of Contact Interaction of Elements Tribointerface ‘a Valve Facet - a saddle’”. Problems of Tribology, vol. 67, no. 1, July 2014, pp. 127-34, https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/160.