@misc{indiciaef28def268e7b,
  title = {Advanced Air Mobility (AAM) Vertiport Automation Trade Study},
  author = {Northeast UAS Airspace Integration Research Alliance (NUAIR)},
  year = {2020},
  url = {https://ntrs.nasa.gov/citations/20210009757},
  note = {Source identifier: 20210009757}
}