@misc{indiciaea23ec4f7d81a,
  title = {Coronagraphic observations of two new sungrazing comets},
  author = {Sheeley, N. R., Jr. and Howard, R. A. and Koomen, M. J. and Michels, D. J.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830033737},
  note = {Source identifier: 19830033737}
}