@misc{indiciae2f307bbfbe85,
  title = {Scheduling language and algorithm development study. Volume 2, phase 2: Introduction to plans programming},
  author = {Cochran, D. R. and Ishikawa, M. K. and Paulson, R. E. and Ramsey, H. R.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760004664},
  note = {Source identifier: 19760004664}
}