@misc{indiciaeadac7b9375a6,
  title = {Linear polarimeter with rapid modulation, achromatic in the 0.3-1.1-micron range},
  author = {Frecker, J. E. and Serkowski, K.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19760039821},
  note = {Source identifier: 19760039821}
}