2026-04-11T10:32:15Z http://petit.lib.yamaguchi-u.ac.jp/api/oai/request Yamaguchi University Navigator for Open access Collection and Archives http://petit.lib.yamaguchi-u.ac.jp/api/oai/request 2.0 yunoca@yamaguchi-u.ac.jp 2022-03-14T00:26:31Z transient YYYY-MM-DDThh:mm:ssZ deflate