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) Nadin Dörner and Oliver Gassmann and Heiko Gebauer,Service innovation: why is it so difficult to accomplish?,Journal of Business Strategy,0275-6668,Emerald,2011-05-03,32,3,37-46,https://cir.nii.ac.jp/crid/1362262943512968064,https://doi.org/10.1108/02756661111121983