@misc{indiciaeeab695a00d6b,
  title = {Putting time into proof outlines},
  author = {Schneider, Fred B. and Bloom, Bard and Marzullo, Keith},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930015963},
  note = {Source identifier: 19930015963}
}