%0 Journal Article %A I. V. Tupikova %A A. A. Vakhidov %T Symbolic computation of the averaged Hamiltonian, describing the motion of asteroids under the influence of major planets %J Zapiski Nauchnykh Seminarov POMI %D 1999 %P 256-261 %V 258 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1999_258_a12/ %G en %F ZNSL_1999_258_a12