van der Eerden WJ, Otten E, May G, Even-Zohar O (1999). "CAREN--Computer Assisted Rehabilitation Environment". Studies in Health Technology and Informatics. 62 (Medicine Meets Virtual Reality): 373–8. doi:10.3233/978-1-60750-906-6-373. PMID10538390.
Geijtenbeek, Thomas; Steenbrink, Frans; Otten, Bert; Even-Zohar, Oshri (2011). "D-flow: immersive virtual reality and real-time feedback for rehabilitation". Proceedings of the 10th International Conference on Virtual Reality Continuum and Its Applications in Industry - VRCAI '11. pp. 201–8. doi:10.1145/2087756.2087785. ISBN978-1-4503-1060-4. S2CID14529364.
van der Eerden WJ, Otten E, May G, Even-Zohar O (1999). "CAREN--Computer Assisted Rehabilitation Environment". Studies in Health Technology and Informatics. 62 (Medicine Meets Virtual Reality): 373–8. doi:10.3233/978-1-60750-906-6-373. PMID10538390.
Geijtenbeek, Thomas; Steenbrink, Frans; Otten, Bert; Even-Zohar, Oshri (2011). "D-flow: immersive virtual reality and real-time feedback for rehabilitation". Proceedings of the 10th International Conference on Virtual Reality Continuum and Its Applications in Industry - VRCAI '11. pp. 201–8. doi:10.1145/2087756.2087785. ISBN978-1-4503-1060-4. S2CID14529364.