@article{uavtodeviceunderlaycommunicationsageof,
  title = {UAV-to-Device Underlay Communications: Age of Information Minimization by Multi-agent Deep Reinforcement Learning},
  year = {2020},
  eprint = {2003.05830},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/2003.05830v1},
}