Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Seiji Yamada and Motohiro Mase and Katsumi Nitta,Extracting Topic Maps from Web Pages,,,Springer Berlin Heidelberg,2009-01-01,,,,https://cir.nii.ac.jp/crid/1871991018091321344,https://doi.org/10.1007/978-3-642-00399-8_15