%0 journal article %@ 0148-0227 %A Scheirer, R.,Macke, A. %D 2001 %J Journal of Geophysical Research %N D 13 %P 14301-14312 %T On the Accuracy of the Independent Column Approximation in calculating the downward Fluxes in the UVA, UVB and PAR spectral Ranges %U D 13 %X