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) Hongyan Gao and Fasheng Liu,Estimating freeway traffic measures from mobile phone location data,European Journal of Operational Research,0377-2217,Elsevier BV,2013-08,229,1,252-260,https://cir.nii.ac.jp/crid/1360855571037562240,https://doi.org/10.1016/j.ejor.2013.02.044