@misc{indiciaec02f365d57d7,
  title = {Progress on Modular Unmanned Aircraft Technology},
  author = {Dahlgren, Robert P. and Alonso, Juan J. and Fladeland, Matthew M.},
  year = {2016},
  url = {https://ntrs.nasa.gov/citations/20200001164},
  note = {Source identifier: 20200001164}
}