Opening up OSI : an illustrated guide 2026-02-16T04:41:25+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Henshall, John, 1953- (Ellis Horwood series in computer communications and networking, 1992)