Description
- Editorial: Recommendations are not orders… – Maurice Guillaud
- A new concept: excavating metro stations with a tunnelling shield – Jean Piraud
- The Halys bypass tunnel in Sarıhıdır, Turkey (550 BC) – A troglodytic answer to a hydrological problem – Eric GILLI
- Recommendations of AFTES’ WG40: Rail tracks and track beds in tunnels (GT40R2A1)
