@misc{BITKOM_2021,
    year = {2021},
    url = {https://de.statista.com/statistik/daten/studie/1247695/umfrage/umfrage-zu-beliebten-einsatzszenarien-fuer-virtual-reality-in-deutschland/#professional},
    title = {Für welche Inhalte haben Sie Virtual Reality bereits genutzt?},
    note = {letzter Zugriff am 01.01.2022},
    author = {Bitkom},
    address = {https://www.bitkom.org/},
}

@misc{REDDIT_2018,
    note = {letzter Zugriff am 01.01.2022},
    author = {Anonym},
    title = {I researched the market share of game engines on Steam, from over 60,000 Steam games.},
    url = {https://www.reddit.com/r/gamedev/comments/8s20qp/i_researched_the_market_share_of_game_engines_on/},
    year = {2018},
}

@misc{ToastGames_2021,
    note = {Webseite der Entwickler},
    author = {ToastGames},
    title = {Richie's Plank Experience},
    url = {https://toast.games/},
}

@misc{ToastGames_2021_Setup,
    note = {Setup laut Entwickler},
    author = {ToastGames},
    title = {Richie's Plank Experience Setup},
    url = {https://toast.games/plank-setup/},
    year = {2021},
}

@misc{ToastGames_2021_Steam,
    note = {Steam Page von Richies Plank Experience},
    author = {ToastGames},
    title = {Richie's Plank Experience Steam},
    url = {https://store.steampowered.com/app/517160/Richies_Plank_Experience/},
    year = {2021},
}

@misc{ToastGames_2021_VivePort,
    note = {VivePort Page von Richies Plank Experience},
    author = {VivePort},
    title = {Richie's Plank Experience VivePort},
    url = {https://www.viveport.com/9347a360-c6ea-4e35-aaf1-9fab4f41cb79},
    year = {2021},
}

@misc{JAXCENTER_2018,
    note = {letzter Zugriff am 2.1.2022},
    author = {Eirini-Eleni Papadopoulou},
    url = {https://jaxenter.com/most-difficult-programming-languages-152590.html},
    year = {2018},
    title = {POLL RESULTS: Assembly is officially crowned the language with the steepest learning curve},
}

@misc{VRChat_2021,
    note = {letzter Zugriff am 3.1.2022},
    author = {VRChat},
    url = {https://hello.vrchat.com/},
    year = {2022},
    title = {VRChat Webpage},
}

@misc{VRChat_2021_Steam,
    note = {letzter Zugriff am 3.1.2022},
    author = {VRChat},
    url = {https://store.steampowered.com/app/438100/VRChat/},
    year = {2022},
    title = {VRChat Steampage},
}

@misc{VRChat_2021_AvatarCreator,
    note = {letzter Zugriff am 3.1.2022},
    author = {VRChat},
    url = {https://hello.vrchat.com/avatar-systems},
    year = {2022},
    title = {VRChat Avatar Creator},
}

@misc{VRChat_2021_FullBodyTracking,
    note = {letzter Zugriff am 3.1.2022},
    author = {VRChat},
    url = {https://docs.vrchat.com/docs/full-body-tracking},
    year = {2022},
    title = {VRChat Full Body Tracking},
}


@misc{PAVEL_NUZHDIN_2020,
    author = {Pavel Nuzhdin},
    url = {https://exyte.com/blog/vr-full-body-tracking},
    year = {2020},
    title = {VR full body tracking: do you really need it?},
    note = {letzter Zugriff am 4.1.2022},
}

@misc{VRCHAT_DOCS_2021,
    author = {VRCHAT},
    note = {letzter Zugriff 4.1.2022},
    year = {2021},
    title = {Full-Body Tracking},
    url = {https://docs.vrchat.com/docs/full-body-tracking},
}

@article{MILGRAM_1994,
    author = {Milgram, Paul and Takemura, Haruo and Utsumi, Akira and Kishino, Fumio},
    year = {1994},
    month = {01},
    pages = {},
    title = {Augmented reality: A class of displays on the reality-virtuality continuum},
    volume = {2351},
    journal = {Telemanipulator and Telepresence Technologies},
    doi = {10.1117/12.197321}
}

@misc{VIVE_2021,
    author = {VIVE Team},
    year = {2021},
    note = {letzter Zugriff 5.1.2021},
    title = {Comprehensive Tier List for VR Immersion (8 Tiers)},
    url = {https://blog.vive.com/us/2021/04/14/vr-tiers-immersion-list/},
}

@inproceedings{BJOERK_2003,
    author = {Björk, Staffan and Lundgren, Sus and Holopainen, Jussi},
    year = {2003},
    month = {01},
    pages = {},
    title = {Game Design Patterns}
}

@article{EMEST_ADAMS_2004,
    author = {Emest Adams},
    title = {Postmodenism and the Three Types of Immersion},
    year = {2004},
    url = {http://designersnotebook.com/Columns/063_Postmodernism/063_postmodernism.htm}
}
@article{CANKAYA_2019,
    author = {Çankaya, Serkan},
    year = {2019},
    month = {01},
    pages = {74-88},
    title = {Use of VR Headsets in Education: A Systematic Review Study},
    journal = {Journal of Educational Technology and Online Learning},
    doi = {10.31681/jetol.518275}
}

@misc{MARTINDALE_2017,
    note = {letzter Zugriff 7.1.2022},
    year = {2017},
    author = {Jon Martindale },
    url = {https://www.digitaltrends.com/virtual-reality/playstationvr-outsells-htc-vive-oculus-rift/},
    title = {PlayStation VR dominates third-quarter VR headset sales },
}

@misc{LOWOOD_2021,
    author = {Henry E. Lowood},
    note = {letzter Zugriff 8.1.2022},
    title = {Virtual Reality},
    year = {2021},
    url = {https://www.britannica.com/technology/virtual-reality},
    publisher = {Encyclopedia Britannica},
}

@misc{GamesRadar_HaloRing_2022,
    note = {letzter Zugriff am 07.02.2022},
    author = {GamesRadar},
    title = {Example for different 3D Environments - Halo},
    url = {https://www.gamesradar.com/halo-infinite-review-campaign/},
    year = {2021},
}

@misc{GameDeveloper_2022,
    note = {letzter Zugriff am 07.02.2022},
    author = {Game Developer},
    title = {Description of Environmental Storytelling},
    url = {https://www.gamedeveloper.com/design/environmental-storytelling},
    year = {2015},
}

@misc{Unity_GridSnapping_2022,
    note = {letzter Zugriff am 07.02.2022},
    author = {Unity},
    title = {Grid Snapping in Unity},
    url = {https://docs.unity3d.com/Manual/GridSnapping.html},
    year = {2020},
}

@misc{Unity_Fog_2022,
    note = {letzter Zugriff am 12.02.2022},
    author = {Unity},
    title = {Unity - Fog},
    url = {https://docs.unity3d.com/2017.4/Documentation/Manual/PostProcessing-Fog.html},
    year = {2020},
}

@misc{Unity_HDRP_Fog_2022,
    note = {letzter Zugriff am 27.02.2022},
    author = {Unity},
    title = {Unity - HDRP Fog},
    url = {https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@7.1/manual/Override-Fog.html},
    year = {2020},
}

@misc{Unity_Post_Processing_2022,
    note = {letzter Zugriff am 12.02.2022},
    author = {Unity},
    title = {Unity - Post Processing},
    url = {https://docs.unity3d.com/2017.4/Documentation/Manual/PostProcessingOverview.html},
    year = {2020},
}

@misc{Unity_Post_Processing_Volumes_2022,
    note = {letzter Zugriff am 12.02.2022},
    author = {Unity},
    title = {Unity - Post Processing Volumes},
    url = {https://learn.unity.com/tutorial/creating-a-global-post-processing-volume-2019-3#60064a2fedbc2a31df244f9c},
    year = {2021},
}

@misc{Unity_Post_Processing_Bloom_2022,
    note = {letzter Zugriff am 27.02.2022},
    author = {Unity},
    title = {Unity - Post Processing Bloom},
    url = {https://docs.unity3d.com/2017.4/Documentation/Manual/PostProcessing-Bloom.html},
    year = {2020},
}

@misc{Unity_Post_Processing_Grain_2022,
    note = {letzter Zugriff am 27.02.2022},
    author = {Unity},
    title = {Unity - Post Processing Grain},
    url = {https://docs.unity3d.com/2017.4/Documentation/Manual/PostProcessing-Grain.html},
    year = {2020},
}

@misc{Unity_Post_Processing_ColorGradin_2022,
    note = {letzter Zugriff am 27.02.2022},
    author = {Unity},
    title = {Unity - Post Processing Color Grading},
    url = {https://docs.unity3d.com/2017.4/Documentation/Manual/PostProcessing-ColorGrading.html},
    year = {2020},
}

@misc{Unity_PointLights_2022,
    note = {letzter Zugriff am 13.02.2022},
    author = {Unity},
    title = {Unity - Point Lights},
    url = {https://docs.unity3d.com/Manual/Lighting.html},
    year = {2021},
}

@misc{Jabil_FutureOfARVR_2021,
    note = {letzter Zugriff am 24.02.2022},
    author = {Jabil},
    title = {Jabil - Future of AR and VR},
    url = {https://www.jabil.com/blog/future-of-augmented-and-virtual-reality-technology.html},
    year = {2022},
}

@misc{Unity_WindZones_2022,
    note = {letzter Zugriff am 13.02.2022},
    author = {Unity},
    title = {Unity - Wind Zones},
    url = {https://docs.unity3d.com/Manual/class-WindZone.html},
    year = {2021},
}

@misc{GK_Media_Factory_Sound_Design_2022,
    note = {letzter Zugriff am 12.02.2022},
    author = {GK Media Factory},
    title = {GK Media Factory - Sound Design},
    url = {https://www.kgmediafactory.com/wissen/sound-design-2/},
    year = {2019},
}


@inproceedings{Haas2014AHO,
    title={A History of the Unity Game Engine},
    author={John K Haas},
    year={2014}
}

@misc{UNITY_DOWNLOAD,
    title = {Unity herunterladen},
    author = {Unity},
    url = {https://unity3d.com/de/get-unity/download},
    note = {letzter Zugriff am 7.2.2022},
}

@misc{UNITY_PRICING,
    title = {Pläne und Preise},
    url = {https://store.unity.com/de},
    note = {letzter Zugriff am 7.2.2022},
    author = {Unity},
}

@misc{WIKIPEDIA_UNITY_GAME_LIST_2014,
    title = {List of Unity games},
    note = {letzter Zugriff am 7.2.2022},
    author = {Wikipedia},
    url = {https://en.wikipedia.org/wiki/List_of_Unity_games},
    year = {2014},
}

@misc{UNITY_PLATTFORMS,
    title = { What platforms are supported by Unity? },
    url = {https://support.unity.com/hc/en-us/articles/206336795-What-platforms-are-supported-by-Unity-},
    author = {Jead},
    year = {2022},
    note = {letzter Zugriff 8.2.2022},
}

@misc{UNEAL_ENGINE_OWNER_2022,
    title = {Who Owns Unreal Engine? – (2022)},
    note = {letzter Zugriff 8.2.2022},
    url = {https://www.gameplaydeveloper.com/who-owns-unreal-engine/},
    year = {2022},
}

@misc{WIKIPEDIA_UNREAL_GAME_LIST,
    title = {List of Unreal Engine games},
    note = {letzter Zugriff 8.2.2022},
    url = {https://en.wikipedia.org/wiki/List_of_Unreal_Engine_games},
}

@misc{UNREAL_ENGINE_PRICING_2022,
    title = {LICENSING OPTIONS},
    note = {letzter Zugriff 8.2.2022},
    url = {https://www.unrealengine.com/en-US/download},
}

@misc{Bryan_Wirtz_SOURCE_ENGINE_2022,
    title = {The Source Engine (Game Engine) Tutorial},
    note = {letzter Zugriff 8.2.2022},
    url = {https://www.gamedesigning.org/engines/source-engine/},
    year = {2022},
    author = {Bryan Wirtz},
}

@misc{VALVE_DEVELOPER_COMMUNITY_SOURCE2,
    title = {Source 2},
    note = {letzter Zugriff 8.2.2022},
    author = {Valve Developer Community},
    url = {https://developer.valvesoftware.com/wiki/Source_2},
}

@misc{VALVE_DEVELOPER_COMMUNITY_SOURCE,
    title = {Source},
    author = {Valve Developer Community},
    url = {https://developer.valvesoftware.com/wiki/Source},
    note = {letzter Zugriff 8.2.2022},
}

@misc{WIKIPEDIA_SOURCE_ENGINE_GAME_LIST,
    title = {Source (game engine)},
    note= {letzter Zugriff 8.2.2022},
    url = {https://en.wikipedia.org/wiki/Source_(game_engine)},
}

@misc{WIKIPEDIA_SOURCE2_ENGINE_GAME_LIST,
    title = {Source 2},
    note = {letzter Zugriff 8.2.2022},
    url = {https://en.wikipedia.org/wiki/Source_2},
}

@misc{Aden_Carter_2020,
    title = {10 Top-Selling VR Games (According To Steam)},
    url = {https://gamerant.com/top-selling-vr-games-according-steam/},
    note = {letzter Zugriff 8.2.2022},
    author = {Aden Carter},
    year = {2020},
}

@misc{Brenna_Hillier_2015,
    title = {Source Engine 2 doesn\'t have hidden costs or royalties \- but is Steam exclusive },
    year = {2015},
    author = {Brenna Hillier},
    note = {letzter Zugriff 8.2.2022},
    url = {https://www.vg247.com/souVortrce-engine-2-doesnt-have-hidden-costs-or-royalties-but-is-steam-exclusive},
}

@misc{Dennis_Ziesecke_2019,
    title = {VR-Durchblick: Die Unterschiede zwischen Inside-Out und Outside-In},
    url = {https://vr-legion.de/hintergruende/vr-durchblick-die-unterschiede-zwischen-inside-out-und-outside-in/},
    note = {letzter Zugriff 17.2.2022},
    author = {Dennis Ziesecke},
    year = {2019},
}

@misc{SadlyItsBradley_2019,
    title = {Valve Index controllers handling slow finger movements},
    note = {letzter Zugriff 17.2.2022},
    author = {SadlyItsBradley},
    year = {2019},
    url = {https://www.youtube.com/watch?v=cjXSXmHZP3Q}
}

@misc{ADI_ROBERTSON_2020,
    author = {Adi Robertson},
    url = {https://www.theverge.com/2020/9/16/21440086/facebook-oculus-connect-recap-biggest-announcements-quest-rift-games},
    title = {Facebook Connect 7: the 5 biggest announcements},
    note = {letzer Zugriff 21.2.2022},
    year = {2020},
}

@article{Macedo_2020,
    author = {Macedo, Vitor and Runde, Christoph},
    year = {2020},
    month = {08},
    pages = {},
    title = {Head-Mounted Displays: Messung räumlicher Präzision bei VR-Trackingsystemen},
    doi = {10.6084/m9.figshare.12752927}
}

@misc{ALSOP_2019,
    author = {Thomas Alsop},
    year = {2019},
    note = {letzter Zugriff 22.2.2022},
    title = {Reported price of leading consumer virtual reality (VR) headsets in 2019, by device},
    url = {https://www.statista.com/statistics/1096886/reported-price-of-leading-consumer-vr-headsets-by-device/},
}

@misc{Martin_Rakver,
    author = {Martin Rakver},
    note = {letzter Zugriff 22.2.2022},
    title = {3 Ways to Get Full Body Tracking With Oculus Quest / Quest 2},
    url = {https://smartglasseshub.com/oculus-quest-full-body-tracking/},
}