Ryoji Hamabe Kiyotaka Uchimoto Tatsuya Kawahara Hitoshi Isahara Detection of Quotations and Inserted Clauses and Its Application to Dependency Structure Analysis in Spontaneous Japanese. 2006 conf/acl/2006 ACL http://acl.ldc.upenn.edu/P/P06/P06-2042.pdf db/conf/acl/acl2006.html#HamabeUKI06