@misc{indiciae2ab93cd76d88,
  title = {Materials technology assessment for stirling engines},
  author = {Stephens, J. R. and Witzke, W. R. and Watson, G. K. and Johnston, J. R. and Croft, W. J.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780009244},
  note = {Source identifier: 19780009244}
}