@misc{indiciae237b49734500,
  title = {Cross-linked polyvinyl alcohol and method of making same},
  author = {Hsu, L. C. and Sheibley, D. W. and Philipp, W. H.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810020622},
  note = {Source identifier: 19810020622}
}