@inproceedings{weko_146911_1,
   author	 = "小宮山,哲俊 and 梅澤,猛 and 大澤,範高",
   title	 = "主観的輪郭を応用したCAPTCHAの強度向上手法",
   booktitle	 = "コンピュータセキュリティシンポジウム2015論文集",
   year 	 = "2015",
   volume	 = "2015",
   number	 = "3",
   pages	 = "897--902",
   month	 = "oct"
}