@misc{indiciae4e06ceaf51a2,
  title = {Photomultiplier for optically probing Comet Halley},
  author = {Giovane, F. and Eichhorn, G. and Mckisson, J. and Weinberg, J. L. and Weisenberger, A.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910056846},
  note = {Source identifier: 19910056846}
}