J. Bruschke, M. Wacker, and F. Niebling. Research and Education in Urban History in the Age of Digital Libraries, page 129--151. Cham, Springer International Publishing, (2021)
T. Höllerer, J. Kuchera-Morin, and X. Amatriain. Proceedings of the 2007 Workshop on Emerging Displays Technologies: Images and beyond: The Future of Displays and Interacton, page 3–es. New York, NY, USA, Association for Computing Machinery, (2007)
P. Schuchardt, and D. Bowman. Proceedings of the 2007 ACM symposium on Virtual reality software and technology - VRST \textquotesingle07, ACM Press, (2007)