@inproceedings{bazilinskyy2020external,
  title={External human-machine interfaces: Which of 729 colors is best for signaling ‘Please (do not) cross’?},
  author={Bazilinskyy, Pavlo and Dodou, Dimitra and De Winter, J. C. F.},
  booktitle={Proceedings of IEEE International Conference on Systems, Man, and Cybernetics (SMC)},
  pages={3721--3728},
  year={2020},
  organization={IEEE},
  address={Toronto, Canada},
  doi={10.1109/SMC42975.2020.9282998}
}