@article{islam2019person,
  title={{Person-following by Autonomous Robots: A Categorical Overview}},
  author={Islam, Md Jahidul and Hong, Jungseok and Sattar, Junaed},
  journal={The International Journal of Robotics Research (IJRR)},
  volume={38},
  number={14},
  pages={1581--1618},
  year={2019},
  publisher={SAGE Publications Sage UK: London, England}
}