@article{weko_14190_1, author = "風間,信也 and 加藤,直樹 and 中川,正樹", title = "文房具メタファを用いた手書き作図システム", journal = "情報処理学会論文誌", year = "1994", volume = "35", number = "7", pages = "1457--1468", month = "jul" }