@techreport{weko_38933_1,
   author	 = "飯塚,厚 and 横山,正明",
   title	 = "機械図面の計算機処理（Gとパターン認識）",
   year 	 = "1990",
   institution	 = "東京工業大学大学院, 東京工業大学",
   number	 = "102(1990-CG-048)",
   month	 = "dec"
}