Zhang X, Yashi Liao, Zhongxiang Chen, Yimin Xia, Kui Zhang. Study on Optimum Free-face Condition of Cutting Hard Rock with Tunnel Boring Machine Hob. Period. Polytech. Civil Eng. [Internet]. 2021 Jan. 1 [cited 2024 May 3];65(2):510-21. Available from: https://pp.bme.hu/ci/article/view/17567