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) Kai Liu and Toshiyuki Yamamoto and Takayuki Morikawa,Impact of road gradient on energy consumption of electric vehicles,Transportation Research Part D: Transport and Environment,1361-9209,Elsevier BV,2017-07,54,,74-81,https://cir.nii.ac.jp/crid/1360846641115417728,https://doi.org/10.1016/j.trd.2017.05.005