@article{weko_195818_1,
   author	 = "Takayuki,Miyazaki and Yasuhiko,Minamide",
   title	 = "Derivatives of Regular Expressions with Lookahead",
   journal	 = "情報処理学会論文誌プログラミング（PRO）",
   year 	 = "2019",
   volume	 = "12",
   number	 = "2",
   month	 = "may"
}