%0 conference lecture %@ %A Atanassov, V., Rosenthal, W., Ziemer, F. %D 1992 %J The World Space Congress: 29 Plenary Meeting of the Committee of Space Research COSPAR %P 535-539 %T Spatial variability of two dimensional SAR Spectra within the Norwegian CAL/VAL Area of ERS-1 %U %X