@misc{indiciae73d72fc248c4,
  title = {Limits on an optical pulsar in supernova 1987A},
  author = {Pennypacker, C. R. and Morris, D. E. and Muller, R. A. and Perlmutter, S. and Kristian, J. A. and Middleditch, J. and Hamuy, M. A. and Kunkel, W. E. and Imamura, J. N. and Steiman-Cameron, T. Y.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890053025},
  note = {Source identifier: 19890053025}
}