@inproceedings{weko_74860_1,
   author	 = "山本,匠 and J.D.Tygar and 西垣,正勝",
   title	 = "機械翻訳CAPTCHA（その2）",
   booktitle	 = "コンピュータセキュリティシンポジウム2009　(CSS2009) 論文集",
   year 	 = "2011",
   volume	 = "2009",
   number	 = "",
   pages	 = "1--6",
   month	 = "oct"
}