@misc{indiciaec4f4a796d43d,
  title = {Sighting and trajectory analysis for periodic comets- 1975-1986},
  author = {Narin, F. and Rejzer, B.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650018746},
  note = {Source identifier: 19650018746}
}