Dr.-Ing. Wolfgang Büschel

@misc{krug2025managing,
   author = {Katja Krug and Wolfgang B\"{u}schel and Mats Ole Ellenberg},
   title = {Managing Information Overload in Large-Scale Distributed Mixed-Reality Meetings},
   booktitle = {CHI’25 Workshop: Scaling Distributed Collaboration in Mixed Reality},
   series = {ACM CHI'25},
   year = {2025},
   month = {04},
   location = {Yokohama, Japan},
   numpages = {5},
   keywords = {Mixed Reality, Collaboration, Large-Scale Meetings, Avatars}
}

@article{MLRBD-2025-ImmDataStoriesReview,
   author = {Juli\'{a}n M\'{e}ndez and Weizhou Luo and Rufat Rzayev and Wolfgang B\"{u}schel and Raimund Dachselt},
   title = {Immersive Data-Driven Storytelling: Scoping an Emerging Field Through the Lenses of Research, Journalism, and Games},
   journal = {IEEE Transactions on Visualization and Computer Graphics},
   year = {2025},
   month = {1},
   doi = {10.1109/TVCG.2025.3531138},
   publisher = {IEEE},
   address = {New Jersey}
}

@inproceedings{krug2024safeguarding,
   author = {Katja Krug and Wolfgang B\"{u}schel and Marc Satkowski},
   title = {Safeguarding Sensations: Harm Prevention in Multisensory Distributed Mixed Reality},
   booktitle = {Proceedings of 2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)},
   series = {ISMAR '24},
   year = {2024},
   month = {10},
   location = {Seattle},
   doi = {10.1109/ISMAR-Adjunct64951.2024.00008},
   publisher = {IEEE}
}

@inproceedings{bueschel2024research,
   author = {Wolfgang B\"{u}schel and Katja Krug and Marc Satkowski and Stefan Gumhold and Raimund Dachselt},
   title = {A Research Platform for Studying Mixed-Presence Collaboration},
   booktitle = {Proceedings of 2024 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)},
   series = {ISMAR '24},
   year = {2024},
   month = {10},
   location = {Seattle},
   doi = {10.1109/ISMAR-Adjunct64951.2024.00058},
   publisher = {IEEE}
}

@inproceedings{fixme,
   author = {Wolfgang B\"{u}schel and Katja Krug and Konstantin Klamka and Raimund Dachselt},
   title = {Demonstrating CleAR Sight: Transparent Interaction Panels for Augmented Reality},
   booktitle = {Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems},
   year = {2023},
   month = {2},
   isbn = {978-1-4503-9422-2/23/04},
   location = {Hamburg, Germany},
   pages = {1--5},
   numpages = {5},
   doi = {10.1145/3544549.3583891},
   publisher = {ACM}
}

@phdthesis{fixme,
   author = {Wolfgang B\"{u}schel},
   title = {Spatial Interaction for Immersive Mixed-Reality Visualizations},
   year = {2023},
   month = {4},
   location = {Dresden},
   url = {https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-857141},
   publisher = {Qucosa - Technische Universit\"{a}t Dresden}
}

@inproceedings{fixme,
   author = {Katja Krug and Wolfgang B\"{u}schel and Konstantin Klamka and Raimund Dachselt},
   title = {CleAR Sight: Exploring the Potential of Interacting with Transparent Tablets in Augmented Reality},
   booktitle = {Proceedings of the 21st IEEE International Symposium on Mixed and Augmented Reality},
   series = {ISMAR '22},
   year = {2022},
   month = {10},
   isbn = {978-1-6654-5325-7/22},
   location = {Singapore},
   pages = {196--205},
   doi = {10.1109/ISMAR55827.2022.00034},
   publisher = {IEEE}
}

@inproceedings{fixme,
   author = {Wolfgang B\"{u}schel and Anke Lehmann and Raimund Dachselt},
   title = {MIRIA: A Mixed Reality Toolkit for the In-Situ Visualization and Analysis of Spatio-Temporal Interaction Data},
   booktitle = {Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems},
   series = {CHI '21},
   year = {2021},
   month = {5},
   isbn = {978-1-4503-8096-6/21/05},
   location = {Yokohama, Japan},
   numpages = {15},
   doi = {10.1145/3411764.3445651},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {interaction analysis, immersive analytics, in-situ analysis, in-situ visualization, augmented reality, human-computer interaction, visualization}
}

@inproceedings{langner:2021:marvis,
   author = {Ricardo Langner and Marc Satkowski and Wolfgang B\"{u}schel and Raimund Dachselt},
   title = {MARVIS: Combining Mobile Devices and Augmented Reality for Visual Data Analysis},
   booktitle = {Proceedings of the 2021 ACM Conference on Human Factors in Computing Systems},
   year = {2021},
   month = {5},
   isbn = {978-1-4503-8096-6/21/05},
   location = {Yokohama, Japan},
   numpages = {17},
   doi = {10.1145/3411764.3445593},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {data visualization, mobile devices, head-mounted augmented reality, cross-device interaction, data analysis, mobile data visualization, augmented displays, immersive analytics}
}

@inproceedings{fixme,
   author = {Barrett Ens and Benjamin Bach and Maxime Cordeil and Ulrich Engelke and Marcos Serrano and Wesley Willett and Arnaud Prouzeau and Christoph Anthes and Wolfgang B\"{u}schel and Cody Dunne and Tim Dwyer and Jens Grubert and Jason H. Haga and Nurit Kirshenbaum and Dylan Kobayashi and Tica Lin and Monsurat Olaosebikan and Fabian Pointecker and David Saffo and Nazmus Saquib and Dieter Schmalstieg and Danielle Albers Szafir and Matthew Whitlock and Yalong Yang},
   title = {Grand Challenges in Immersive Analytics},
   booktitle = {Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems},
   series = {CHI '21},
   year = {2021},
   month = {05},
   isbn = {978-1-4503-8096-6/21/05},
   location = {Yokohama, Japan},
   numpages = {17},
   doi = {10.1145/3411764.3446866},
   publisher = {ACM},
   address = {New York, NY, USA}
}

@inproceedings{satkowski2021experiences,
   author = {Marc Satkowski and Wolfgang B\"{u}schel and Raimund Dachselt},
   title = {Experiences with User Studies in Augmented Reality},
   booktitle = {CHI 2021 Workshop on Evaluating User Experiences in Mixed Reality},
   year = {2021},
   month = {05},
   location = {Yokohama, Japan},
   numpages = {14},
   doi = {10.48550/arXiv.2104.03795},
   url = {https://arxiv.org/abs/2104.03795},
   keywords = {User Study, Augmented Reality}
}

@inproceedings{fixme,
   author = {Wolfgang B\"{u}schel and Georg Eckert and Raimund Dachselt},
   title = {Challenges in Collaborative Immersive Visualization},
   booktitle = {CHI 2020 Workshop on Immersive Analytics: Envisioning Future Productivity for Immersive Analytics},
   series = {CHI '20},
   year = {2020},
   month = {4},
   location = {Honolulu, Hawaii, USA},
   pages = {1--6},
   numpages = {6}
}

@inproceedings{bueschel2019,
   author = {Wolfgang B\"{u}schel and Annett Mitschick and Thomas Meyer and Raimund Dachselt},
   title = {Investigating Smartphone-based Pan and Zoom in 3D Data Spaces in Augmented Reality},
   booktitle = {Proceedings of the 21st International Conference on Human-Computer Interaction with Mobile Devices and Services},
   series = {MobileHCI ’19},
   year = {2019},
   month = {10},
   isbn = {9781450368254},
   location = {Taipei, Taiwan},
   pages = {1--13},
   numpages = {13},
   doi = {10.1145/3338286.3340113},
   url = {https://doi.org/10.1145/3338286.3340113},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {Augmented Reality, 3D Navigation, 3D Data Exploration, Pan \& Zoom, Interaction Techniques, Immersive Visualization}
}

@article{fixme,
   author = {Wolfgang B\"{u}schel and Stefan Vogt and Raimund Dachselt},
   title = {Augmented Reality Graph Visualizations: Investigation of Visual Styles in 3D Node-Link Diagrams},
   journal = {IEEE Computer Graphics and Applications},
   volume = {39},
   number = {3},
   year = {2019},
   month = {2},
   isbn = {0272-1716},
   pages = {29--40},
   numpages = {12},
   doi = {10.1109/MCG.2019.2897927},
   url = {https://doi.org/10.1109/MCG.2019.2897927},
   publisher = {IEEE}
}

@inbook{fixme,
   author = {Wolfgang B\"{u}schel and Jian Chen and Raimund Dachselt and Steven Drucker and Tim Dwyer and Carsten G\"{o}rg and Tobias Isenberg and Andreas Kerren and Chris North and Wolfgang Stuerzlinger},
   editor = {Kim Marriott and Falk Schreiber and Tim Dwyer and Karsten Klein and Nathalie Henry Riche and Takayuki Itoh and Wolfgang Stuerzlinger and Bruce H. Thomas},
   title = {Interaction for Immersive Analytics},
   booktitle = {Immersive Analytics},
   series = {Lecture Notes in Computer Science},
   volume = {11190},
   year = {2018},
   month = {10},
   isbn = {978-3-030-01388-2},
   pages = {95--138},
   doi = {10.1007/978-3-030-01388-2_4},
   url = {https://doi.org/10.1007/978-3-030-01388-2_4},
   publisher = {Springer International Publishing},
   address = {Cham}
}

@inproceedings{Bueschel2018a,
   author = {Wolfgang B\"{u}schel and Annett Mitschick and Raimund Dachselt},
   title = {Demonstrating Reality-Based Information Retrieval},
   booktitle = {Proceedings of the 2018 CHI Conference Extended Abstracts on Human Factors in Computing Systems},
   series = {CHI EA '18},
   year = {2018},
   month = {4},
   isbn = {978-1-4503-5621-3},
   location = {Montreal, QC, Canada},
   pages = {D312:1--D312:4},
   numpages = {4},
   doi = {10.1145/3170427.3186493},
   url = {https://doi.org/10.1145/3170427.3186493},
   acmid = {3186493},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {augmented reality, immersive visualization, in situ visual analytics, reality-based information retrieval, spatial user interface}
}

@inproceedings{Bueschel2018b,
   author = {Wolfgang B\"{u}schel and Stefan Vogt and Raimund Dachselt},
   title = {Investigating Link Attributes of Graph Visualizations in Mobile Augmented Reality},
   booktitle = {CHI 2018 Workshop on Data Visualization on Mobile Devices},
   series = {CHI '18},
   year = {2018},
   month = {4},
   location = {Montreal, QC, Canada}
}

@proceedings{fastvpn2018,
   author = {Andreas Bluschke and Wolfgang B\"{u}schel and Michael Hohmuth and Frieder Jehring and Rainer Kaminski and Konstantin Klamka and Stefan K\"{o}psell and Adam Lackorzynski and Tim Lackorzynski and Michael Matthews and Philipp Rietzsch and Alexander Senier and Peter Sieber and Volker Ulrich and Rainer Wiggers and Jean Wolter},
   title = {fastvpn – Secure and Flexible Networking for Industry 4.0},
   booktitle = {Broadband Coverage in Germany; 12. ITG-Symposium.},
   year = {2018},
   month = {4},
   isbn = {978-3-8007-4637-8},
   location = {Berlin, Germany.},
   pages = {28--35},
   numpages = {8},
   publisher = {VDE Verlag GmbH - Berlin - Offenbach},
   address = {Berlin, Germany.}
}

@inproceedings{Bueschel:2018,
   author = {Wolfgang B\"{u}schel and Annett Mitschick and Raimund Dachselt},
   title = {Here and Now: Reality-based Information Retrieval},
   booktitle = {Proceedings of the ACM SIGIR Conference on Human Information Interaction and Retrieval},
   year = {2018},
   month = {3},
   location = {New Brunswick, NJ, USA},
   pages = {171--180},
   numpages = {10},
   doi = {10.1145/3176349.3176384},
   url = {https://doi.org/10.1145/3176349.3176384},
   publisher = {ACM}
}

@inproceedings{Bueschel2017_3DInfoVis,
   author = {Wolfgang B\"{u}schel and Patrick Reipschl\"{a}ger and Ricardo Langner and Raimund Dachselt},
   title = {Investigating the Use of Spatial Interaction for 3D Data Visualization on Mobile Devices},
   booktitle = {Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces},
   series = {ISS '17},
   year = {2017},
   month = {10},
   isbn = {978-1-4503-4691-7},
   location = {Brighton, United Kingdom},
   pages = {62--71},
   numpages = {10},
   doi = {10.1145/3132272.3134125},
   url = {https://doi.org/10.1145/3132272.3134125},
   acmid = {3134125},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {3D Data Visualization, Immersive Visualization, Mobile Devices, Spatial Input, Tangible Displays}
}

@inproceedings{Klamka2017d_IllumiPaper_ISS,
   author = {Konstantin Klamka and Wolfgang B\"{u}schel and Raimund Dachselt},
   title = {Illuminated Interactive Paper with Multiple Input Modalities for Form Filling Applications},
   booktitle = {Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces},
   series = {ISS '17},
   year = {2017},
   month = {10},
   isbn = {978-1-4503-4691-7},
   location = {Brighton, United Kingdom},
   pages = {434--437},
   numpages = {4},
   doi = {10.1145/3132272.3132287},
   url = {https://doi.org/10.1145/3132272.3132287},
   acmid = {3132287},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {Digital pen and paper, electroluminescence, augmented paper, visual feedback, Anoto, form filling, printed electronics}
}

@inproceedings{fixme,
   author = {Wolfgang B\"{u}schel and Patrick Reipschl\"{a}ger and Raimund Dachselt},
   title = {Foldable3D: Interacting with 3D Content Using Dual-Display Devices},
   booktitle = {Proceedings of the 2016 ACM International Conference on Interactive Surfaces and Spaces},
   year = {2016},
   month = {11},
   isbn = {978-1-4503-4248-3},
   location = {Niagara Falls, ON, Canada},
   pages = {367--372},
   numpages = {6},
   doi = {10.1145/2992154.2996782},
   url = {https://doi.org/10.1145/2992154.2996782},
   acmid = {2996782},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {3d interaction, augmented reality, dual-display device, head-coupled perspective, virtual reality}
}

@inproceedings{fixme,
   author = {Wolfgang B\"{u}schel and Patrick Reipschl\"{a}ger and Raimund Dachselt},
   title = {Improving 3D Visualizations: Exploring Spatial Interaction with Mobile Devices},
   booktitle = {ISS 2016 Workshop Immersive Analytics: Exploring Future Interaction and Visualization Technologies for Data Analytics},
   year = {2016},
   month = {11},
   location = {Niagara Falls, ON, Canada},
   numpages = {7},
   doi = {10.1145/3009939.3009949},
   url = {http://dx.doi.org/10.1145/3009939.3009949},
   publisher = {ACM},
   keywords = {Spatial Interaction, 3D Visualization, Head-coupled Perspective, Information Visualization, Tangible Displays}
}

@inproceedings{fixme,
   author = {Fabrice Matulic and Wolfgang B\"{u}schel and Michael Yang and Stephan Ihrke and Anmol Ramraika and Carsten Rother and Raimund Dachselt},
   title = {Smart Ubiquitous Projection: Discovering Surfaces for the Projection of Adaptive Content},
   booktitle = {Proceedings of the 34th Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems},
   series = {CHI EA '16},
   year = {2016},
   month = {5},
   isbn = {978-1-4503-4082-3},
   location = {San Jose, CA, USA},
   pages = {2592--2600},
   numpages = {9},
   doi = {10.1145/2851581.2892545},
   url = {http://dx.doi.org/10.1145/2851581.2892545},
   acmid = {2892545},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {projection everywhere, ubiquitous displays, projection surface detection, interaction with projected content}
}

@article{fixme,
   author = {Wolfgang B\"{u}schel and Ricardo Langner and Ulrich von Zadow and Tom Horak and Raimund Dachselt},
   title = {Towards Cross-Surface Content Sharing Between Mobile Devices and Large Displays in the Wild},
   booktitle = {CHI 2016 Workshop on Interacting with Multi-Device Ecologies "'in the Wild"'},
   year = {2016},
   month = {5},
   location = {San Jose, CA, USA},
   numpages = {5}
}

@article{fixme,
   author = {Kai Rohmer and Wolfgang B\"{u}schel and Raimund Dachselt and Thorsten Grosch},
   title = {Interactive Near-Field Illumination for Photorealistic Augmented Reality with Varying Materials on Mobile Devices},
   booktitle = {IEEE Transactions on Visualization and Computer Graphics},
   volume = {21 (12)},
   year = {2015},
   month = {12},
   isbn = {1077-2626},
   pages = {1349--1362 },
   numpages = {14},
   doi = {10.1109/TVCG.2015.2450717},
   url = {http://dx.doi.org/10.1109/TVCG.2015.2450717},
   publisher = {IEEE}
}

@inproceedings{Zadow-ITS-2014,
   author = {Ulrich von Zadow and Wolfgang B\"{u}schel and Ricardo Langner and Raimund Dachselt},
   title = {SleeD: Using a Sleeve Display to Interact with Touch-sensitive Display Walls},
   booktitle = {Proceedings of the 2014 ACM International Conference on Interactive Tabletops and Surfaces},
   year = {2014},
   month = {12},
   isbn = {978-1-4503-2587-5},
   location = {Dresden, Germany},
   pages = {129--138},
   numpages = {10},
   doi = {10.1145/2669485.2669507},
   url = {https://doi.org/10.1145/2669485.2669507},
   acmid = {2669507},
   publisher = {ACM}
}

@inproceedings{fixme,
   author = {Kai Rohmer and Wolfgang B\"{u}schel and Raimund Dachselt and Thorsten Grosch},
   title = {Interactive Near-field Illumination for Photorealistic Augmented Reality on Mobile Devices},
   booktitle = {2014 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)},
   year = {2014},
   month = {9},
   pages = {29--38},
   doi = {10.1109/ISMAR.2014.6948406},
   url = {https://doi.org/10.1109/ISMAR.2014.6948406},
   keywords = {Mixed Reality, Augmented Reality, Mobile, Real-time Global Illumination, Distributed Rendering, Precomputed Radiance Transfer, Instant Radiosity}
}

@inproceedings{DIS-2014-tPad,
   author = {Juan David Hincapi\'{e}-Ramos and Sophie Roscher and Wolfgang B\"{u}schel and Ulrike Kister and Raimund Dachselt and Pourang Irani},
   title = {tPad: Designing Transparent-Display Mobile Interactions},
   booktitle = {Proceedings of the 10th ACM Conference on Designing Interactive Systems},
   year = {2014},
   month = {6},
   location = {Vancouver, BC, Canada},
   pages = {161--170},
   numpages = {10},
   doi = {10.1145/2598510.2598578},
   url = {https://doi.org/10.1145/2598510.2598578},
   publisher = {ACM},
   keywords = {Transparent Displays, Transparent Mobile Devices, tPad, Flipping, Tap’n Flip, Surface Capture, Contact AR}
}

@article{fixme,
   author = {Martin Spindler and Wolfgang B\"{u}schel and Charlotte Winkler and Raimund Dachselt},
   title = {Tangible displays for the masses: spatial interaction with handheld displays by using consumer depth cameras},
   booktitle = {Personal and Ubiquitous Computing},
   volume = {18 (5)},
   year = {2014},
   month = {6},
   isbn = {1617-4909},
   pages = {1213--1225},
   numpages = {13},
   doi = {10.1007/s00779-013-0730-7},
   url = {http://dx.doi.org/10.1007/s00779-013-0730-7},
   publisher = {Springer London},
   keywords = {Tangible magic lenses, PaperLens, Tangible display ecosystem, Spatial interaction, Multi-display environment, Interaction above the tabletop, Kinect}
}

@inproceedings{PerDis-2014-cAR,
   author = {Juan David Hincapi\'{e}-Ramos and Sophie Roscher and Wolfgang B\"{u}schel and Ulrike Kister and Raimund Dachselt and Pourang Irani},
   title = {cAR: Contact Augmented Reality with Transparent-Display Mobile Devices},
   booktitle = {Proceedings of the 3rd International Symposium on Pervasive Displays},
   year = {2014},
   month = {6},
   location = {Copenhagen, Denmark},
   pages = {80--85},
   numpages = {6},
   doi = {10.1145/2611009.2611014},
   url = {https://doi.org/10.1145/2611009.2611014},
   keywords = {Contact Augmented Reality, Transparent Devices}
}

@inproceedings{TransparentTangibles-2014-AVI,
   author = {Wolfgang B\"{u}schel and Ulrike Kister and Mathias Frisch and Raimund Dachselt},
   title = {T4 - Transparent and Translucent Tangibles on Tabletops},
   booktitle = {Proceedings of the 12th International Working Conference on Advanced Visual Interfaces 2014},
   year = {2014},
   month = {5},
   isbn = {978-1-4503-2775-6},
   location = {Como, Italy},
   pages = {81--88},
   numpages = {8},
   doi = {10.1145/2598153.2598179},
   url = {https://doi.org/10.1145/2598153.2598179},
   acmid = {2598179},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {Tangible User Interfaces, Transparent Tangibles, Interactive Surfaces}
}

@article{Frisch-2013-CHI,
   author = {Mathias Frisch and Ulrike Kister and Wolfgang B\"{u}schel and Ricardo Langner and Raimund Dachselt},
   title = {Translucent Tangibles on Tabletops: Exploring the Design Space},
   booktitle = {CHI 2013 Workshop on Blended Interaction - Envisioning Future Collaborative Interactive Spaces},
   year = {2013},
   month = {4},
   location = {Paris, France},
   numpages = {6},
   keywords = {Tangible User Interfaces, Blended Interaction, Interactive Surfaces}
}

@article{Büschel-2013-CHI,
   author = {Wolfgang B\"{u}schel and Andr\'{e} Viergutz and Raimund Dachselt},
   title = {Towards Interaction with Transparent and Flexible Displays},
   booktitle = {CHI 2013 Workshop on Displays Take New Shape: An Agenda for Future Interactive Surfaces},
   year = {2013},
   month = {4},
   numpages = {4},
   keywords = {mobile devices, transparent and flexible interfaces, interaction techniques}
}

@inproceedings{spindler:2012:tangibleWindows,
   author = {Martin Spindler and Wolfgang B\"{u}schel and Raimund Dachselt},
   title = {Use Your Head: Tangible Windows for 3D Information Spaces in a Tabletop Environment},
   booktitle = {Proceedings of the 2012 ACM International Conference on Interactive Tabletops and Surfaces},
   year = {2012},
   month = {11},
   isbn = {978-1-4503-1209-7},
   location = {Cambridge, MA, USA},
   pages = {245--254},
   numpages = {10},
   doi = {10.1145/2396636.2396674},
   url = {http://dx.doi.org/10.1145/2396636.2396674},
   acmid = {2396674},
   publisher = {ACM},
   address = {New York, NY, USA},
   keywords = {3d interaction, fish tank virtual reality, head interaction, head tracking, head-coupled perspective, magic lenses, multi-surface user interfaces, multiple views, tabletop displays, tangible windows}
}

@inproceedings{spindler:2012:avi:towards_tangible_displays,
   author = {Martin Spindler and Wolfgang B\"{u}schel and Raimund Dachselt},
   title = {Towards Spatially Aware Tangible Displays for the Masses},
   booktitle = {Proceedings of the 2012 AVI Workshop on Designing Collaborative Interactive Spaces for e-Creativity, e-Science and e-Learning},
   year = {2012},
   month = {5},
   location = {Capri, Italy},
   numpages = {4},
   keywords = {tangible magic lenses, PaperLens, low-cost system, spatial interaction, Kinect}
}