@techreport{weko_39182_1,
   author	 = "鎌田富久 and 川合慧",
   title	 = "Geometry - Oriented Graphics Interface",
   year 	 = "1985",
   institution	 = "東京大学理学部, 東京大学理学部",
   number	 = "20(1985-CG-018)",
   month	 = "jul"
}