TY - JOUR AU - J. Lazović TI - Change in the Mutual Distance of Celestial Bodies Resulting From Changes in Some of Their JO - Publications of the Department of Astronomy PY - 1985 SP - 5 VL - 13 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDA_1985_13_a0/ LA - en ID - PDA_1985_13_a0 ER -