A new concept of development : basic tenets 2026-02-15T12:45:52+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Perroux, Francois, 1903- (Croom Helm ; UNESCO, 1983)