@inproceedings{yang2020impact, title={Impact of trajectory generation methods on viewer perception of robot approaching group behaviors}, author={Yang, Fangkai and Yin, Wenjie and Bj{\"o}rkman, M{\aa}rten and Peters, Christopher}, booktitle={2020 29th IEEE International Conference on Robot and Human Interactive Communication (RO-MAN)}, pages={509--516}, year={2020}, organization={IEEE} }