@misc{indiciae9c8cab7c67cb,
  title = {Optical computing and image processing using photorefractive gallium arsenide},
  author = {Cheng, Li-Jen and Liu, Duncan T. H.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910026165},
  note = {Source identifier: 19910026165}
}