Ik Rae Jeong Jeong Ok Kwon Dowon Hong Dong Hoon Lee Searchable Encryption with <i>Keyword-Recoverability</i>. 1200-1203 2009 92-D IEICE Transactions 5 http://search.ieice.org/bin/summary.php?id=e92-d_5_1200&category=D&year=2009&lang=E&abst= db/journals/ieicet/ieicet92d.html#JeongKHL09