著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
Bloomfield,Physical demands of different positions in FA Premier League soccer,J Sports Sci Med,,,2007,6,1,63,https://cir.nii.ac.jp/crid/1370287673570331393,