@misc{indiciae1f61d2947428,
  title = {Polyimides Containing Carbonyl And Ether Connecting Groups},
  author = {Hergenrother, Paul M. and Havens, Stephen J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900000635},
  note = {Source identifier: 19900000635}
}