著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Kenichi Hagihara and Noriyuki Fujimoto,Non-approximability of the Bulk Synchronous Task Scheduling Problem,,,Springer Berlin Heidelberg,2002-01-01,,,,https://cir.nii.ac.jp/crid/1870020692706392960,https://doi.org/10.1007/3-540-45706-2_29