@misc{indiciaeb3d8621ea639,
  title = {Radiometry in the Submillimeter Region Using the Interferometric Modulator},
  author = {Williams, R. A. and Chang, W. S. C.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19640009340},
  note = {Source identifier: 19640009340}
}