TY - JOUR AU - D. Djurović TI - Solar Activity and Relationships Between Astronomy and the Geosciences JO - Publications of the Department of Astronomy PY - 1990 SP - 21 EP - 28 VL - 18 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDA_1990_18_1_a1/ ID - PDA_1990_18_1_a1 ER -