1. Annual road statistics . (1994). Japanese Ministry of Constr. Tokyo Japan (in Japanese).
2. ARC command references . (1992). Environmental Systems Research Institute Inc. Calif.
3. Bridge management report prepared by an OECD scientific expert group . (1992). Org. for Economic Co-Operation and Devel. (OECD) Paris France.
4. Prototype Object‐Oriented System for Maintenance of Timber Trusses
5. General report on the 1978 Miyagiken-oki Earthquake . (1980). Tohoku Branch of Japan Soc. of Civ. Engrs. Sendai Japan (in Japanese).