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Loup-Escande, E., & Christmann, O. (2013). Designing a Virtual Reality Software: What Is the Real Contribution of End-Users to the Requirements Prioritization? Evaluation of Novel Approaches to Software Engineering, 1–15. doi:10.1007/978-3-642-54092-9_1 
10.1007/978-3-642-54092-9_1