Hiroyuki Kawano, Gihei Takahashi, and Ryuzo Tatsuguchi ; Study on Standardization of Public Restroom Hand-Operated Fixture、Layout, The 2nd International Conference for Universal Design in KYOTO 2006.10
Gihei Takahashi; The Headstream and Development of JapaneseBarrier Free Design an UD Give an example of the category of architecture and town planning 2006.8 Beijing International Symposium on UD p.50-57
髙橋儀平:Genealogy and Progressing of Barrier Free and UD in Japan, The 1st COrea & Japan International Symposium, 2006.7