@misc{indiciae863ad40f702d,
  title = {High temperature polyimide foams for shuttle upper surface thermal insulation},
  author = {Ball, G. L., III and Leffingwell, J. W. and Salyer, I. O. and Werkmeister, D. W.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19750010360},
  note = {Source identifier: 19750010360}
}