KATUSHIN, D. Overview of Tunnel Boring Machines and Testing Devices for Drag Bits. International Journal of Innovative Technology and Interdisciplinary Sciences, [S. l.], v. 1, n. 1, p. 34–38, 2018. DOI: 10.15157/IJITIS.2018.1.1.34-38. Disponível em: https://journals.tultech.eu/index.php/ijitis/article/view/1. Acesso em: 10 may. 2024.