Jim Shiau, Mathew Sams, Fadhil Al-Asadi, and Mohammad Mirza Hassan. “STABILITY CHARTS FOR UNSUPPORTED PLANE STRAIN TUNNEL HEADINGS IN HOMOGENEOUS UNDRAINED CLAY”. GEOMATE Journal 14, no. 41 (October 25, 2017): 19–26. Accessed April 25, 2024. https://geomatejournal.com/geomate/article/view/3200.