Yasuhiro Ogawa Shintaro Inagaki Katsuhiko Toyama Automatic Consolidation of Japanese Statutes Based on Formalization of Amendment Sentences. 363-376 2007 JSAI http://dx.doi.org/10.1007/978-3-540-78197-4_34 conf/jsai/2007 db/conf/jsai/jsai2007.html#OgawaIT07