Kirschke, D.:
New railway lines in Germany. Rapid tunnelling in difficult ground: How to close the gap between safety and economy. Proc. Int. Congr. on Large Underground Openings (Florenz), Vol. 1, S. 200 – 206.
IB Kirschke
New railway lines in Germany. Rapid tunnelling in difficult ground: How to close the gap between safety and economy. Proc. Int. Congr. on Large Underground Openings (Florenz), Vol. 1, S. 200 – 206.