@misc{indiciae116826aa9bed,
  title = {The Penn State astronomical image processing system},
  author = {Truax, Ryland J. and Nousek, John A. and Feigelson, Eric D. and Lonsdale, Colin J.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870060000},
  note = {Source identifier: 19870060000}
}