Who is a better tutor? gaze hints with a human or humanoid tutor in game play. Mwangi, E. N., Barakova, E. I, Diaz, M., Mallofré, A. C., & Rauterberg, M. In Proceedings of the Companion of the 2017 ACM/IEEE International Conference on Human-Robot Interaction, pages 219–220, 2017.
bibtex   
@inproceedings{mwangi2017better,
  title={Who is a better tutor? gaze hints with a human or humanoid tutor in game play},
  author={Mwangi, Eunice Njeri and Barakova, Emilia I and Diaz, Marta and Mallofr{\'e}, Andreu Catal{\`a} and Rauterberg, Matthias},
  booktitle={Proceedings of the Companion of the 2017 ACM/IEEE International Conference on Human-Robot Interaction},
  pages={219--220},
  year={2017}
}

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