@misc{indiciae275ebeaf53f1,
  title = {Electronographic photometry of extended objects. I - Reduction procedures},
  author = {Benedict, G. and Chincarini, G. and Wray, J. and Heckathorn, H.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19750039862},
  note = {Source identifier: 19750039862}
}