@InProceedings{Michailidis2018b,
  author    = {E. T. Michailidis, N. Nomikos, P. Bithas, D. Vouyioukas, and A. G. Kanatas},
  booktitle = {10th International Conference on Advances in Satellite and Space Communications (SPACOMM 2018)},
  title     = {Optimal Relay Location and Oppοrtunistic User-Scheduling for Stratospheric Communications},
  year      = {2018},
}