2026-04-11T14:38:08Z https://ir.library.osaka-u.ac.jp/repo/mmd_api/oai-pmh/ The University of Osaka Institutional Knowledge Archive https://ir.library.osaka-u.ac.jp/repo/mmd_api/oai-pmh/ 2.0 tosyo-seibi-cont@office.osaka-u.ac.jp 2006-08-16T00:00:00Z transient YYYY-MM-DDThh:mm:ssZ oai ir.library.osaka-u.ac.jp : oai:ir.library.osaka-u.ac.jp:11094/ID