%0 Journal Article %A V. P. Karklin %T The ellipticity of the trajectory of free motions of the earth pole %J Doklady Akademii Nauk %D 1968 %P 1064-1066 %V 180 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_180_5_a13/ %G ru %F DAN_1968_180_5_a13