@article{weko_15145_1,
   author	 = "山口,泰 and 木村,文彦",
   title	 = "CADのための拘束条件モデリング環境",
   journal	 = "情報処理学会論文誌",
   year 	 = "1989",
   volume	 = "30",
   number	 = "11",
   pages	 = "1512--1521",
   month	 = "nov"
}