@misc{indiciae07100bad90c5,
  title = {Development of a spinning wave heat engine},
  author = {Zinn, B. T. and Powell, E. A. and Hubbartt, J. E.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820023452},
  note = {Source identifier: 19820023452}
}