G. Nord
- Bore-and-blast techniques in different types of rock: Sweden's experience☆. Dans: Tunnelling and Underground Space Technology, v. 3, n. 1 ( 1988). (1988):
- Probing ahead of TBMs by geophysical means. Dans: Tunnelling and Underground Space Technology, v. 7, n. 3 (juillet 1992). (1992):