@article{empiricallowaltitudeairtogroundspatial,
  title = {Empirical Low-Altitude Air-to-Ground Spatial Channel Characterization for Cellular Networks Connectivity},
  author = {Xuesong Cai and Tomasz Izydorczyk and José Rodríguez-Piñeiro and István Z. Kovács and Jeroen Wigard and Fernando M. L. Tavares and Preben E. Mogensen},
  year = {2020},
  eprint = {2010.00841},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2010.00841v2},
}