Baumgartner, P. & Wydra, D., 1999. VR Studying Business Education. In B. Collis & R. Oliver, eds. Proceedings of ED-MEDIA 99 – 11th World Conference on Educational Multimedia and Hypermedia. ED-MEDIA 99. Charlottesville: AACE, pp. 1430–1431.
Baumgartner, P. & Wydra, D., 1999. VR Studying Business Education. In B. Collis & R. Oliver, eds. Proceedings of ED-MEDIA 99 – 11th World Conference on Educational Multimedia and Hypermedia. ED-MEDIA 99. Charlottesville: AACE, pp. 1430–1431.