%0 Journal Article %A Sekanina, Zdeněk %T Variation of the production of solar radiation during eleven-year cycle of solar activity in the wave-length range 620 Å to 11000 Å %J Acta Universitatis Carolinae. Mathematica et Physica %D 1961 %P 29-55 %V 02 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/AUCMP_1961__2_1_a4/ %G en %F AUCMP_1961__2_1_a4