TY - JOUR AU - D. Djurović AU - P. Pâquet TI - A Quasi Biennal Oscillation in Solar Activity and Geophysical Phenomena: Preliminary results JO - Publications of the Department of Astronomy PY - 1990 SP - 5 VL - 18 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDA_1990_18_a0/ LA - en ID - PDA_1990_18_a0 ER -