Virtual reality and mixed reality 21st EuroXR International Conference, EuroXR 2024, Athens, Greece, November 27-29, 2024, proceedings - Reyes-Lecuona, Arcadio; Zachmann, Gabriel; Bordegoni, Monica; Chen, Jian; Karaseitanidis, Giannis; Pagani, Alain; Bourdot, Patrick (Springer, 2025)