@misc{indiciae88b9f884ec0b,
  title = {On-orbit Modulation Transfer Function (MTF) Measurements for IKONOS and QuickBird},
  author = {Helde, Dennis and Choi, Jason and Anderson, Cody},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20070038252},
  note = {Source identifier: 20070038252}
}