@article{duarte2020abakos,
  title={Beware: NAT Traversal is a Simple and Efficient Approach to Open Firewall Holes},
  author={Duarte Jr, Elias P and Cardoso, Kleber V and Mello, Micael OMC and Gazolla-Borges, Joao G},
  journal={Abakos},
  volume={8},
  number={2},
  pages={29--41},
  year={2020},
}