@techreport{weko_38875_1,
   author	 = "西田友是",
   title	 = "自由曲面のレンダリング手法",
   year 	 = "1992",
   institution	 = "福山大学工学部",
   number	 = "13(1991-CG-055)",
   month	 = "feb"
}