Wagner, H., Schulter, A., Wagner, H., & Schulter, A. (1996). Tunnel boring machines: Trends in design & construction of mechanized tunnelling: proceedings of the International Lecture Series in TBM Tunnelling Trends, Hagenberg, Austria, 14-15 December, 1995. Rotterdam ; Brookfield: A.A. Balkema.
Παραπομπή Chicago StyleWagner, Harald, Alfred Schulter, Harald Wagner, and Alfred Schulter. Tunnel Boring Machines: Trends in Design & Construction of Mechanized Tunnelling: Proceedings of the International Lecture Series in TBM Tunnelling Trends, Hagenberg, Austria, 14-15 December, 1995. Rotterdam ; Brookfield: A.A. Balkema, 1996.
Παραπομπή MLAWagner, Harald, Alfred Schulter, Harald Wagner, and Alfred Schulter. Tunnel Boring Machines: Trends in Design & Construction of Mechanized Tunnelling: Proceedings of the International Lecture Series in TBM Tunnelling Trends, Hagenberg, Austria, 14-15 December, 1995. Rotterdam ; Brookfield: A.A. Balkema, 1996.