TY - CONF TI - Learning environments and usability: appropriateness and complementarity of evaluation methods AU - Δημητρακοπούλου, Αγγελική PY - 2001 SP - 545-554 PB - Εκδοτικός Οργανισμός Λιβάνη T2 - 8th Panhellenic Conference in Informatics Proceedings (Volume 2) ER -