@misc{indiciae3b0aca24ac7b,
  title = {Developing a Fundamental Model for an Integrated GPS/INS State Estimation System with Kalman Filtering},
  author = {Canfield, Stephen},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20020043249},
  note = {Source identifier: 20020043249}
}