1. Hossain, M.F., Jamalipour, A., Munasinghe, K.: A Survey on Virtual Reality over Wireless Networks: Fundamentals, QoE, Enabling Technologies, Research Trends and Open Issues. Authorea Preprints (2023)
2. Mann, S., Furness, T., Yuan, Y., et al.: All reality: Virtual, augmented, mixed (x), mediated (x, y), and multimediated reality. arXiv preprint arXiv:1804.08386 (2018)
3. Parikka, J.: What is media archaeology? John Wiley & Sons, pp. 24–25 (2013)
4. The concept of the fourth wall is not only applied to the theatrical stage, but also to movies, television, games, etc. It is a virtual interface that does not exist on the side of the stage
5. Wen, Z., Xiaotang, X. (ed.): China Virtual Reality Art Development Report. China International Broadcasting Press, p. 4