@techreport{weko_51622_1,
   author	 = "木村文彦 and 穂坂衛",
   title	 = "3次元自由形状モデルとその応用",
   year 	 = "1980",
   institution	 = "東大工, 東大宇航研",
   number	 = "21(1980-ICS-017)",
   month	 = "sep"
}