Principles of information security 2026-02-15T20:21:39+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Whitman, Michael E., 1964-; Mattord, Herbert J. (Course Technology, Cengage Learning, 2012)