Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MUGURUMA Masamichi,The usefulness of patent forward citation analysis and its practical examples.,The Journal of Information Science and Technology Association,09133801,"Information Science and Technology Association, Japan",2006,56,3,114-119,https://cir.nii.ac.jp/crid/1390282679182048512,https://doi.org/10.18919/jkg.56.3_114