@article{timedelayestimationoftrafficcongestion1,
  title = {Time Delay Estimation of Traffic Congestion Based on Statistical Causality},
  author = {YongKyung Oh and Ji-In Kwak and JuYeong Lee and Sungil Kim},
  year = {2021},
  url = {https://openreview.net/forum?id=UMQ4PFd35i},
}