Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Hirotsugu Minowa, Yoshiomi Munesawa and Kazuhiko Suzuki",Method to Extract Remarkable Words and Grouped Accidents according to Co-occurrence and Frequency of Words,Journal of Japan Society for Safety Engineering,0570-4480,Japan Soceiety for Safety Engineering,2012,51,5,319-326,https://cir.nii.ac.jp/crid/1390282681220328832,https://doi.org/10.18943/safety.51.5_319