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) Mami Matsumoto and Masashi Miwa and Tatsuo Oyama,Multivariate Analyses for Finding Significant Track Irregularities to Generate an Optimal Track Maintenance Schedule,American Journal of Operations Research,2160-8830,"Scientific Research Publishing, Inc.",2022,12,06,261-292,https://cir.nii.ac.jp/crid/1360298453692208512,https://doi.org/10.4236/ajor.2022.126015