Air Transport Systems of the Gulf Cooperation Council Countries 2026-02-15T15:48:08+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Al-Shalan, Ibrahim A. I. (University of Southampton, Faculty of Science, Department of Geography, 2001)