@misc{indiciae248648314732,
  title = {Searching for extraterrestrial intelligence - The ultimate exploration},
  author = {Black, D. and Tarter, J. and Cuzzi, J. N. and Conners, M. and Clark, T. A.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770063895},
  note = {Source identifier: 19770063895}
}