@misc{indiciaebd4b8951ccfc,
  title = {The Nutating Engine-Prototype Engine Progress Report and Test Results},
  author = {Meitner, Peter L. and Boruta, Mike},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20060056193},
  note = {Source identifier: 20060056193}
}