@misc{indiciae69497f815e5f,
  title = {Human decision making in future ATC systems comparative studies in distributed traffic management},
  author = {Kreifeldt, J. G. and Wempe, T. E.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19750050468},
  note = {Source identifier: 19750050468}
}