@article{article,
  author = {Steven Brown and Bettye Johnson},
  title = {Development of a Portable Integrating Sphere Source for the Earth Observing System{\textquoteright}s Calibration Validation Programme},
  year = {2003},
  number = {24},
  month = {2003-01-01},
  publisher = {International Journal of Remote Sensing},
  language = {en},
}