You Shall Not Pass: Non-Intrusive Feedback for Virtual Walls in VR Environments with Room-Scale Mapping. - Mette Boldt; Michael Bonfert; Inga Lehne; Melina Cahnbley; Kim Korschinq; Ioannis Bikas; Stefan Finke; Martin Hanci; Valentin Kraft; Boxuan Liu; Tram Nguyen; Alina Panova; et al. (VR, 2018)