@misc{indiciae4b8359885793,
  title = {Pulsar-aided SETI experimental observations},
  author = {Heidmann, J. and Biraud, F. and Tarter, J.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900026604},
  note = {Source identifier: 19900026604}
}