Fields and waves in communication electronics 2026-02-15T23:52:41+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Ramo, Simon; Van Duzer, Theodore; Whinnery, John R. (J. Wiley, 1994)