Gonçalves, M. J. A.CAMARINHA, ANA PAULASILVA, ANTÓNIOBraga, InêsAutor correspondente: Gonçalves, M. J. A..2026-01-052026-01-052019http://hdl.handle.net/10400.22/31357N/AVirtual learning environments: formal environments vs informal environmentsbook part2026-01-03cv-prod-3637977