@misc{indiciaef75f7af2c581,
  title = {The European Mobile System (EMS)},
  author = {Jongejans, A. and Rogard, R. and Mistretta, I. and Ananasso, F.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940018316},
  note = {Source identifier: 19940018316}
}