@techreport{weko_54772_1,
   author	 = "岡本,敏雄 and 鷹岡亮",
   title	 = "ITS－学習者モデルにおける概念形成機能について",
   year 	 = "1991",
   institution	 = "東京学芸大学, 東京学芸大学",
   number	 = "97(1991-CE-019)",
   month	 = "nov"
}