@article{weko_201525_1,
   author	 = "Tatsuya,Midorikawa and Akihiro,Tachikawa and Akira,Kanaoka",
   title	 = "Helping Johnny to Search: Usable Encrypted Search on Webmail System ",
   journal	 = "情報処理学会論文誌",
   year 	 = "2019",
   volume	 = "60",
   number	 = "12",
   month	 = "dec"
}