@article{understandinghumanhumaninteractionsa,
  title = {Analyzing Human-Human Interactions: A Survey},
  author = {Alexandros Stergiou and Ronald Poppe},
  year = {2018},
  eprint = {1808.00022},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1808.00022v2},
}