著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) José Holguín-Veras and Mecit Cetin,Optimal tolls for multi-class traffic: Analytical formulations and policy implications,Transportation Research Part A: Policy and Practice,0965-8564,Elsevier BV,2009-05,43,4,445-467,https://cir.nii.ac.jp/crid/1363670318999695360,https://doi.org/10.1016/j.tra.2008.11.012