The Origin of values 2026-02-16T00:15:18+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Hechter, Michael; Michod, Richard E.; Nadel, Lynn (Sociology and economics, 1993)