@misc{indiciaee416d61b5ffb,
  title = {Digital TV tri-state delta modulation system for Space Shuttle ku-band downlink},
  author = {Udalov, S. and Huth, G. K. and Roberts, D. and Batson, B. H.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19840049666},
  note = {Source identifier: 19840049666}
}