@techreport{weko_51481_1,
   author	 = "織田充 and 田中譲",
   title	 = "多重世界論理に基づく知識表現",
   year 	 = "1985",
   institution	 = "北海道大学・工学部, 北海道大学・工学部",
   number	 = "19(1985-ICS-041)",
   month	 = "jul"
}