Augmented and Virtual Reality in STEAM: Virtual Field Trips - Fotiadis, T.; Theophilou, I.; Papadopoulos, GA; A. -M. A. Galani; Psycharis, S.; Andrikopoulou, M.; Papagiannaki, K.; Kotroni, V.; Koletsis, I.; Makri, K.; Spyrou, E.; Saitis, G.; et al. (ComputerComputer)