TY - CONF TI - Expressing ideas through sound manipulation with logo AU - Γυφτοδήμος, Γεώργιος AU - Kynigos, Chronis AU - Σπηλιοπούλου, Μαρία PY - 1993 SP - 55-65 PB - Εκπαιδευτήρια Δούκας T2 - Logo-like learning environments:reflection and prospects. proceedings of the fourth European Logo Conference, University of Athens, Department of Informatics, 28-31 August 1993, Athens Greece ER -