@misc{indiciaeffa2f33100ed,
  title = {On the Development of Parameterized Linear Analytical Longitudinal Airship Models},
  author = {Kulczycki, Eric A. and Johnson, Joseph R. and Bayard, David S. and Elfes, Alberto and Quadrelli, Marco B.},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20090031833},
  note = {Source identifier: 20090031833}
}