Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MASUBUCHI Fumio,A Study on Transitions of Desing Code and History of Pedestrian bridge Construction,HISTORICAL STUDIES IN CIVIL ENGINEERING,0916-7293,Japan Society of Civil Engineers,1993,13,,57-67,https://cir.nii.ac.jp/crid/1390001204328578176,https://doi.org/10.2208/journalhs1990.13.57