@techreport{weko_39153_1,
   author	 = "福井,幸男",
   title	 = "オブジェクト指向レイ・トレーシングと応用例",
   year 	 = "1986",
   institution	 = "工業技術院・製品科学研究所",
   number	 = "43(1986-CG-022)",
   month	 = "jul"
}