СЕЛЕГЕЙ, А. Н. Explanation of nominal frequency of impacts of machine punch to open the iron notch. Eastern-European Journal of Enterprise Technologies, [S. l.], v. 6, n. 7(60), p. 34–37, 2012. DOI: 10.15587/1729-4061.2012.5555. Disponível em: https://journals.uran.ua/eejet/article/view/5555. Acesso em: 18 may. 2024.