@misc{indiciaef4c98a7364c0,
  title = {Process for preparing phthalocyanine polymer from imide containing bisphthalonitrile},
  author = {Achar, Bappalige N. and Fohlen, George M. and Parker, John A.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870011679},
  note = {Source identifier: 19870011679}
}