The Spektr test facility for the calibration of spaceborne radiometers in the 0.3-2.5-micron spectral range

@inproceedings{Tynnisson1989TheST,
  title={The Spektr test facility for the calibration of spaceborne radiometers in the 0.3-2.5-micron spectral range},
  author={T. A. Tynnisson and R. E. Graf and L. O. Miartin},
  year={1989}
}