Hajime Takasaki
- Design Of The Triple Circular Face Shield Tunnel Linning For The Osaka Business Park Subway Station. Dans: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1996, n. 540 (juin 1996). (1996):
- Results Of The Practical Multi-circular Face Shield Method. Dans: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1996, n. 553 (décembre 1996). (1996):
- Driving Control Of Triple Circular Face Shield Machine. Dans: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1997, n. 560 (mars 1997). (1997):