@article{RitterbuschTeichmann2023,
  author    = {Georg David Ritterbusch and Malte Rolf Teichmann},
  title     = {Defining the metaverse},
  journal   = {IEEE Access},
  series    = {A systematic literature review},
  volume    = {11},
  pages     = {12368 -- 12377},
  doi       = {10.1109/ACCESS.2023.3241809},
  year      = {2023},
}