@article{Ng2021J11,
  author = {Pai Chet Ng and Petros Spachos and Stefano Gregori and Konstantinos N. Plataniotis},
  title = {Personal Devices for Contact Tracing: Smartphones and Wearables to Fight Covid-19},
  year = {2021},
  journal = {IEEE Communications Magazine},
  volume = {59},
  number = {9},
  pages = {24--29},
  doi = {10.1109/MCOM.001.2100002},
  url = {https://doi.org/10.1109/MCOM.001.2100002}
}