@misc{indiciae2f4d1fa094b0,
  title = {Attitude determination and calibration using a recursive maximum likelihood-based adaptive Kalman filter},
  author = {Kelly, D. A. and Fermelia, A. and Lee, G. K. F.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910007775},
  note = {Source identifier: 19910007775}
}