@misc{indiciae476069defa00,
  title = {Flame retardant polyphosphazenes},
  author = {Paciorek, K. L. and Karle, D. W. and Kratzer, R. H.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740004707},
  note = {Source identifier: 19740004707}
}