@unpublished{TUW-258639,
    author = {Mossel, Annette},
    title = {Virtual Reality: The next Challenges},
    year = {2016},
    keywords = {Virtual Reality, Augmented Reality, Background, State of the Art, Open Challanges, Oppertunities},
    note = {invited; talk: AVR Playground Conference, Wien; 2016-06-13}
}