ПРУНЬКО, І.; БОГАТЧУК, І.; КРИШТОПА, С.; ДОЛІШНІЙ, Б. Optimization of process parameters electrical spark hardening oil and gas transportation technology. Problems of Tribology, [S. l.], v. 66, n. 4, p. 43–48, 2014. Disponível em: https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/267. Acesso em: 20 apr. 2024.