E-collaborative knowledge construction : learning from computer-supported and virtual environments 2026-02-15T17:39:30+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Ertl, Bernhard, 1973- (Information Science Reference, 2010)