%0 Journal Article %A Lazar Rusov %T On First Integrals Of The Equations Of Motion Of The Form dxi/dt = aij ∂Φ/∂xj %J Publications de l'Institut Mathématique %D 1968 %P 5 %V _N_S_08 %N 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/PIM_1968_N_S_08_22_a1/ %F PIM_1968_N_S_08_22_a1