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)
,Analyzinglecturer 's speech and slide by estimated word difficulty,The 20th International Conference on Computer Education,,,2012,,,106-108,https://cir.nii.ac.jp/crid/1010000782115635840,