(1) Qua Email: Xin gu+?i dde^'n viet-khsv@is.aist-nara.ac.jp va` ghi trong Subject: ###!!!QKH (2) Qua thu+, fax: Prof. Ho Tu Bao School of Knowledge Science JAIST 1-1 Asahi Tatsunokuchi Nomigun Ishikawaken 923-1292 JAPAN Tel: +81-761-51-1730 Fax: +81-761-51-1149 email: bao@jaist.ac.jp hoa(.c Associate Prof. Vu Thanh Ca Dept. of Civil and Environmental Eng. Saitama University Urawa, Saitama 338-8570, Japan Tel: +81-48-858-3567 Fax: +81-48-858-7370 email: vuca@sun.civil.saitama-u.ac.jp