Knowledge representation 2026-02-16T00:09:07+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Brachman, Ronald J.; Levesque, Hector J.; Reiter, Raymond (Special issues of Artificial intelligence, an international journal, 1992)