@misc{indiciae025309a82876,
  title = {Torque Production in a Halbach Machine},
  author = {Eichenberg, Dennis J. and Gallo, Christopher A. and Thompson, William K. and Vrnak, Daniel R.},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20070006850},
  note = {Source identifier: 20070006850}
}