@article{17414,
  title = {IMM-UKF Versus Frequency Analysis [Past and Present]},
  year = {2010},
  journal = {IEEE Industrial Electronics Magazine},
  volume = {4},
  pages = {7 - 18},
  month = {Sept. 2010 },
  doi = {10.1109/MIE.2010.937937},
  language = {eng},
}