Reduction of regional disparities : the role of educational planning 2026-02-15T16:03:14+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Carron, Gabriel; Ta, Ngoc Chau (Unesco Press, 1981)