%0 Journal Article %A Lazar Rusov %T On Some First Integrals Of Equations Of Motion %J Publications de l'Institut Mathématique %D 1965 %P 69 %V _N_S_05 %N 19 %I mathdoc %U http://geodesic.mathdoc.fr/item/PIM_1965_N_S_05_19_a7/ %F PIM_1965_N_S_05_19_a7