2020 http://localhost:8080/xmlui/handle/123456789/2259 Mon, 15 Jun 2026 14:52:03 GMT 2026-06-15T14:52:03Z ELECTRICITY AND ELECTRODYNAMICS http://localhost:8080/xmlui/handle/123456789/2260 ELECTRICITY AND ELECTRODYNAMICS MGU Wed, 01 Jan 2020 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/2260 2020-01-01T00:00:00Z