Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Itoh Takashi,"The Transition of Mansei Bridge and its Bridgehead Plaza by Studying Pictures, Photos and Maps",PAPERS OF THE RESEARCH MEETING ON THE CIVIL ENGINEERING HISTORY IN JAPAN,0913-4107,Japan Society of Civil Engineers,1988,8,0,264-273,https://cir.nii.ac.jp/crid/1390282679303911680,https://doi.org/10.11532/journalhs1981.8.264