@inproceedings{oai:ipsj.ixsq.nii.ac.jp:00232066,
 author = {坪田, 安弘},
 book = {第9回プログラミング—シンポジウム報告集},
 month = {Jan},
 pages = {D-4--D-11},
 publisher = {情報処理学会},
 title = {DIGIGRAPHIC SYSTEMS},
 volume = {1968},
 year = {1968}
}