@misc{indiciaefc773ca20504,
  title = {Shuttle ground operations efficiencies/technologies study. Volume 4: Preliminary Issues Database (PIDB) catalog},
  author = {Scholz, A. L. and Hart, M. T. and Lowry, D. J.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870013020},
  note = {Source identifier: 19870013020}
}