1. Virtual Reality – History, Applications, Technology and Future;Mazuryk,1999
2. Museum of Computer Art (MOCA) http://moca.virtual.museum/ (accessed 22.07.19).
3. The Virtual Museum by Apple Computer http://www.elisoftware.org/index.php/Virtual_Museum,_The_(Mac,_CD-ROM)_Apple_Computer_-_1992_USA,_Canada_Release (accessed 22.07.19).
4. Encarta Virtual Tours, https://en.wikipedia.org/wiki/Encarta (accessed 22.07.19).
5. Zeitreise, http://www.wearemuseums.com/time-travelling-through-the-staedel-museum-thanks-to-vr/ (accessed 25.06.19).