%0 Journal Article %A D. Djurović %A P. Pâquet %T A Quasi Biennal Oscillation in Solar Activity and Geophysical Phenomena: Preliminary results %J Publications of the Department of Astronomy %D 1990 %P 5 %V 18 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDA_1990_18_a0/ %G en %F PDA_1990_18_a0