@article{KreimeierGoetzelmann2020,
  author    = {Julian Kreimeier and Timo G{\"o}tzelmann},
  title     = {Two Decades of Touchable and Walkable Virtual Reality for Blind and Visually Impaired People: A High-Level Taxonomy},
  journal   = {Multimodal Technologies and Interaction},
  volume    = {4},
  number    = {4},
  doi       = {10.3390/mti4040079},
  year      = {2020},
}