http://localhost:8080/xmlui/handle/123456789/501 Wed, 17 Jun 2026 10:54:52 GMT 2026-06-17T10:54:52Z http://localhost:8080/xmlui/handle/123456789/1796 ORGANIC CHEMISTRY-II MGU Wed, 01 Jan 2020 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/1796 2020-01-01T00:00:00Z