@misc{250921,
  author = {Sokwoo Rhee},
  title = {2019 Global City Teams Challenge: Smart and Secure Cities and Communities Challenge Expo},
  year = {2020},
  month = {2020-01-31},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.1900-204},
  language = {en},
}