%0 Journal Article %A Eleni Papachristou %A Christos Troussas %A Akrivi Krouska %A Cleo Sgouropoulou %T AI-Powered Virtual Assistants in Education: A Systematic Review of Applications and Implications (2014-2025) %J Computer Science and Information Systems %D 2026 %V 23 %N 1 %U http://geodesic.mathdoc.fr/item/CSIS_2026_23_1_a11/ %F CSIS_2026_23_1_a11