Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kasai Hiroko and Yamada Minoru,A Study of transportation service for an aged person,Journal of the City Planning Institute of Japan,09160647,The City Planning Institute of Japan,2006,41.3,0,49-54,https://cir.nii.ac.jp/crid/1390282679190862464,https://doi.org/10.11361/journalcpij.41.3.49