1. The Grimsel test site: results from Phase-III and proposals for Phase-IV;Frieg,1993
2. Exploration Geophysics;Hagiwara,1951
3. Blasters' Handbook,1976
4. In-situ tests and numerical analysis of excavation disturbed zone around a drift in Neogene sedimentary rock;Kamemura,1993
5. In-situ stress measurements by the over-coring method — development of an 8-element gauge for 3-dimensional estimation;Kanagawa,1988