@article{weko_15530_1,
   author	 = "中川,裕志 and 森,辰則",
   title	 = "論理型言語におけるCircumscription",
   journal	 = "情報処理学会論文誌",
   year 	 = "1987",
   volume	 = "28",
   number	 = "4",
   pages	 = "330--338",
   month	 = "apr"
}