Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TAKAHASHI Teruaki,Consideration of efficient macro-analytic method of patent information : Patent Map to have adopted F-term as analytic factors,The Journal of Information Science and Technology Association,09133801,"Information Science and Technology Association, Japan",2002,52,2,100-106,https://cir.nii.ac.jp/crid/1390282679210152192,https://doi.org/10.18919/jkg.52.2_100