@inproceedings{weko_128014_1, author = "山田,康吉 and 寺岡,義伸", title = "配管設計CADに於ける空間のモデル化について", booktitle = "全国大会講演論文集", year = "1995", volume = "第50回", number = "システム", pages = "119--120", month = "mar" }