@misc{indiciae07461c1bd611,
  title = {The NASA SETI sky survey: Recent developments},
  author = {Klein, M. J. and Gulkis, S. and Olsen, E. T. and Renzetti, N. A.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900003488},
  note = {Source identifier: 19900003488}
}