Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kazunori Itoh and Takashi Nagai and Mizue Kayama,A Basic Study on a Drawing-Learning Support System in the Networked Environment,,,Springer Berlin Heidelberg,2009-01-01,,,,https://cir.nii.ac.jp/crid/1870020693255115904,https://doi.org/10.1007/978-3-642-02577-8_94