@misc{indiciae193158dfed82,
  title = {A Real-Time Algorithm for Integrating Differential Satellite and Inertial Navigation Information During Helicopter Approach},
  author = {Hoang, Ty},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19970003007},
  note = {Source identifier: 19970003007}
}