@misc{indiciae4bdb7650f968,
  title = {Polyimides from a methylene-bridged dianhydride},
  author = {Boston, Harold G. and St. Clair, Anne K. and Pratt, J. R. and Hubbard, T.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19930061372},
  note = {Source identifier: 19930061372}
}