@misc{indiciae386e7405f39d,
  title = {Polyimides Containing Carbonyl and Ether Connecting Groups},
  author = {Hergenrother, Paul M. and Havens, Stephen J.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870000330},
  note = {Source identifier: 19870000330}
}