@techreport{weko_40937_1,
   author	 = "佐藤,英人",
   title	 = "統計データと分類の知識表現とその応用",
   year 	 = "1987",
   institution	 = "大阪大学社会経済研究所",
   number	 = "77(1987-FI-007)",
   month	 = "nov"
}