@techreport{weko_39187_1,
   author	 = "大沢,晃",
   title	 = "三次元スペース・モデリングの考察",
   year 	 = "1985",
   institution	 = "（株）日立製作所武蔵工場",
   number	 = "20(1985-CG-018)",
   month	 = "jul"
}