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) Assad Abbas and Limin Zhang and Samee U. Khan,A literature review on the state-of-the-art in patent analysis,World Patent Information,0172-2190,Elsevier BV,2014-06,37,,3-13,https://cir.nii.ac.jp/crid/1360294646014059776,https://doi.org/10.1016/j.wpi.2013.12.006