D. Ashbrook and T. Starner, MAGIC: A Motion Gesture Design Tool, Proc. of the SIGCHI Conference on Human Factors in Computing Systems (CHI' 10), pp.2159-2168, 2010.

A. De-luca, M. Harbach, E. V. Zezschwitz, M. E. Maurer, B. Slawik et al., Now You See Me , Now You Don't Protecting Smartphone Authentication from Shoulder Surfers, Proc. of the SIGCHI Conference on Human Factors in Computing Systems (CHI '14), pp.2937-2946, 2014.

T. Dong, E. F. Churchill, and J. Nichols, Understanding the Challenges of Designing and Developing Multi-Device Experiences, Proc. of the 2016 ACM Conference on Designing Interactive Systems (DIS '16), pp.62-72, 2016.

M. Eiband, M. Khamis, E. Von-zezschwitz, H. Hussmann, and F. Alt, Understanding Shoulder Surfing in the Wild: Stories from Users and Observers, Proc. of the 2017 CHI Conference on Human Factors in Computing Systems -CHI '17, pp.4254-4265, 2017.

M. Eiband, E. Von-zezschwitz, D. Buschek, and H. Hußmann, My Scrawl Hides It All: Protecting Text Messages Against Shoulder Surfing With Handwritten Fonts, Proc. of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems -CHI EA '16, pp.2041-2048, 2016.

W. Goucher, Look behind you: the dangers of shoulder surfing, Computer Fraud & Security, vol.2011, issue.11, pp.17-20, 2011.

C. Gutwin and S. Greenberg, Design for Individuals, Design for Groups: Tradeoffs Between Power and Workspace Awareness, Proc. of the 1998 ACM conference on Computer Supported Cooperative Work (CSCW'98), pp.207-216, 1998.

A. Hinderks, M. Schrepp, and J. Thomaschewski, User experience questionnaire, 2019.

P. Institute, Global Visual Hacking Experimental Study: Analysis. Tech. Rep. August, Ponemon Institute, 2016.

S. Kim, D. Ko, and W. Lee, Utilizing Smartphones as a Multi-Device Single Display Groupware to Design Collaborative Games, Proc. of the 2017 ACM Conference on Designing Interactive Systems (DIS '17), pp.1341-1352, 2017.

S. H. Kim, J. W. Kim, S. Y. Kim, and H. G. Cho, A new shoulder-surfing resistant password for mobile environments, Proc. of the 5th International Conference on Ubiquitous Information Management and Communication -ICUIMC '11, 2011.

M. Korzetz, R. Kühn, and T. Schlegel, Turn it, pour it, twist it: A model for designing mobile device-based interactions, Proceedings of the 5th International Conference on Human-Computer Interaction and User Experience in Indonesia, 2019.

R. Kühn, M. Korzetz, L. Büschel, C. Korger, P. Manja et al., Natural voting interactions for collaborative work with mobile devices, Proc. of the 2016 CHI Conference on Human Factors in Computing Systems, vol.16, pp.2570-2575, 2016.

R. Kühn, M. Korzetz, L. Büschel, F. W. Schumann, and T. Schlegel, Device-based Interactions for Anonymous Voting and Rating with Mobile Devices in Collaborative Scenarios, Proc. of the 15th International Conference on Mobile and Ubiquitous Multimedia -MUM '16, pp.315-317, 2016.

R. Kühn and T. Schlegel, Mixed-Focus Collaboration Activities for Designing Mobile Interactions, Proc. of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI'18), pp.71-77, 2018.

B. Laugwitz, T. Held, and M. Schrepp, Construction and Evaluation of a User Experience Questionnaire, HCI and Usability for Education and Work, pp.63-76, 2008.

S. W. Leigh, P. Schoessler, F. Heibeck, P. Maes, and H. Ishii, THAW: Tangible Interaction with See-Through Augmentation for Smartphones on Computer Screens, Proc. of the 9th International Conference on Tangible, Embedded, and Embodied Interaction -TEI '15, pp.89-96, 2015.

H. Lim, H. Ahn, J. Kang, B. Suh, and J. Lee, Ubi-jector: An Information-Sharing Workspace in Casual Places Using Mobile Devices, Proc. of the 16th international conference on Human-computer interaction with mobile devices & services (MobileHCI '14), pp.379-388, 2014.

A. Lucero, J. Holopainen, and T. Jokela, Pass-Them-Around: Collaborative Use of Mobile Phones for Photo Sharing, Proc. of the 2011 Conference on Human Factors in Computing Systems -CHI '11, pp.1787-1796, 2011.

A. Lucero, J. Holopainen, and T. Jokela, Mobicomics: Collaborative use of mobile phones and large displays for public expression, Proc. of the 14th International Conference on Human-computer Interaction with Mobile Devices and Services, vol.12, pp.383-392, 2012.

A. Lucero, J. Keränen, and T. Jokela, Social and Spatial Interactions: Shared Co-Located Mobile Phone Use, Proc. of the 28th of the international conference extended abstracts on Human factors in Computing Systems, vol.10, pp.3223-3228, 2010.

A. Lucero, M. Porcheron, and J. E. Fischer, Collaborative Use of Mobile Devices to Curate Sources of Inspiration, MobileHCI '16 Proce. of the 18th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct, pp.611-616, 2016.

C. Mccrindle, E. Hornecker, A. Lingnau, and J. Rick, The design of t-vote: a tangible tabletop application supporting children's decision making, Proc. of the 10th International Conference on Interaction Design and Children, pp.181-184, 2011.

R. Rädle, H. C. Jetter, N. Marquardt, H. Reiterer, and Y. Rogers, HuddleLamp: Spatially-Aware Mobile Displays for Ad-hoc Around-the-Table Collaboration, Proc. of the Ninth ACM International Conference on Interactive Tabletops and Surfaces -ITS '14, pp.45-54, 2014.

J. Rico and S. Brewster, Usable Gestures for Mobile Interfaces: Evaluating Social Acceptability, Proc. of the 28th International Conference on Human Factors in Computing Systems -CHI '10, pp.887-896, 2010.

V. Roth and K. Richter, How to fend off shoulder surfing, Journal of Banking and Finance, vol.30, issue.6, pp.1727-1751, 2006.

B. Rott and C. Marouane, Digitalization in Schools -Organization, Collaboration and Communication, pp.113-124, 2018.

J. Scheible and T. Ojala, MobiLenin Combining A Multi-Track Music Video, Personal Mobile Phones and A Public Display into Multi-User Interactive Entertainment, MULTIMEDIA '05: Proc. of the 13th annual ACM International Conference on Multimedia, pp.199-208, 2005.

J. Seifert, A. Simeone, D. Schmidt, P. Holleis, C. Reinartz et al., MobiSurf: Improving Co-located Collaboration through Integrating Mobile Devices and Interactive Surfaces, Proc. of the 2012 ACM international conference on Interactive tabletops and surfaces -ITS '12, pp.51-60, 2012.

, Straw poll -the place to create instant, real-time polls for free, 2019.

D. Turnbull, Rating, voting & ranking: designing for collaboration & consensus. In: CHI '07 Extended Abstracts on Human Factors in Computing Systems, pp.2705-2710, 2007.

C. Winkler, J. Gugenheimer, A. De-luca, G. Haas, P. Speidel et al., Glass Unlock: Enhancing Security of Smartphone Unlocking through Leveraging a Private Near-eye Display, Proc. of the 33rd ACM Conference on Human Factors in Computing Systems -CHI '15, pp.1407-1410, 2015.

E. Von-zezschwitz, A. De-luca, B. Brunkow, and H. Hussmann, SwiPIN -Fast and Secure PIN-Entry on Smartphones, Proc. of the 2016 CHI Conference on Human Factors in Computing Systems, pp.1403-1406, 2015.