@misc{indiciae189aa75082b3,
  title = {Analog methods for on-line system identification using noisy measurements.},
  author = {Ricker, D. W. and Saridis, G. N.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690035775},
  note = {Source identifier: 19690035775}
}