@misc{indiciae0f67e09e90a1,
  title = {Fluidic-thermochromic display device Patent},
  author = {Grafstein, D. and Hilborn, E. H.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710009128},
  note = {Source identifier: 19710009128}
}