%0 Journal Article %A J. Lazović %T Determination of Proximity of Elliptical Orbits of Celestial Bodies by Way of Eccentric Anomalies %J Publications of the Department of Astronomy %D 1981 %P 65 - 73 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDA_1981_11_1_a8/ %F PDA_1981_11_1_a8