1. 1. Ding, W., Jin, Y., Zhao, W., Jiang, H., & Zhang, Y. (2014). A computational method for ground penetrating shield tunnel. In Tunneling and Underground Construction, 227-236.
2. 2. Hitonari, F., Tetsuya, N., & Masayoshi, I. (2009). URUP (ultra rapid under pass) method—the first shield tunneling method for launching and arrival at the ground level. In World Tunneling Congress. Budapest, Hungary, 112-116.
3. 3. Ishibashi, I. & Zhang, X. (1993). Unified dynamic shear moduli and damping ratios of sand and clay. Soils and foundations, 33, 182-191.
4. 4. Lu, H., Zhuo, F., Bai, Y. & Li, Q. S. (2014). Research on Key Techniques of Shield Construction in Mixed Ground. Applied Science, Materials Science and Information Technologies in Industry, 513-517, 3482-3488.
5. 5. Nakamura, T., & Hazama, H. (2010). URUP (Ultra Rapid under Pass) method the first implementation in a public project. In Australian Structural Engineering Conference, 1175-1180.