@misc{indiciaef00001bd75d6,
  title = {Repairing cracked glass},
  author = {Helman, D. D. and Holt, J. W. and Smiser, L. V.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790000134},
  note = {Source identifier: 19790000134}
}