@misc{indiciae9e90a0f63088,
  title = {Putting time into proof outlines},
  author = {Schneider, Fred B. and Bloom, Bard and Marzullo, Keith},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920004491},
  note = {Source identifier: 19920004491}
}