Talking vs typing: how voice- vs text-based educational robots shape student engagementMele, Cristina; Russo-Spena, Tiziana; Ranieri, Angelo; Di Bernardo, Irene; Hollebeek, Linda DesireeJournal of Service Management2025 / 24, p https://doi.org/10.1108/JOSM-02-2024-0082