%0 Journal Article %A A. V. Borisov %A I. S. Mamaev %A S. M. Ramodanov %T Algebraic reduction of systems on two- and three-dimensional spheres %J Russian journal of nonlinear dynamics %D 2008 %P 407-416 %V 4 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2008_4_4_a1/ %G ru %F ND_2008_4_4_a1