@misc{indiciae067736d4c103,
  title = {Improved silicon nitride for advanced heat engines},
  author = {Yeh, H. C. and Wimmer, J. M. and Huang, H. H. and Rorabaugh, M. E. and Schienle, J. and Styhr, K. H.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19880006504},
  note = {Source identifier: 19880006504}
}