@misc{indiciaece4ce70693be,
  title = {Geant4 Simulation of Air Showers using Thinning Method},
  author = {Sabra, Mohammad S. and Christl, Mark J. and Watts, John W.},
  year = {2015},
  url = {https://ntrs.nasa.gov/citations/20150006841},
  note = {Source identifier: 20150006841}
}