@misc{indiciaef464d81303af,
  title = {Operations planning simulation model extension study. Volume 6: Expanded functional flows and descriptions},
  author = {Marks, D. A. and Gendiellee, R. E. and Kelly, T. M. and Giovannello, M. A.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750012365},
  note = {Source identifier: 19750012365}
}