Landsat-7 ETM+: 12 Years On-Orbit Reflective-Band Radiometric Performance.
Brian L. MarkhamMd. Obaidul HaqueJulia A. BarsiEsad MicijevicDennis L. HelderKurtis J. ThomeDavid AaronJeffrey Czapla-MyersPublished in: IEEE Trans. Geosci. Remote. Sens. (2012)