| No. | Title | Issue Date | Format |
|---|---|---|---|
| 1 | MITSUI Enlargement Shield Tunnelling Method (pdf) | 1985 | Black & White/5pages |
| 2 | Enlargement Of Pre-Driven Shield Tunnel Section by A New Method (pdf) | June 1986 | Black & White/10pages |
| 3 | Underground shield tunnel enlargement work (pdf) | April 1991 | Black & White/7pages |
STAJ Official Site | Shield Tunneling Association of Japan
