@misc{indiciae94594d15e59a,
  title = {Materials for a Stirling engine heater head},
  author = {Noble, J. E. and Lehmann, G. A. and Emigh, S. G.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910053520},
  note = {Source identifier: 19910053520}
}