%0 Journal Article %A J.M. Sanz-Serna %A T. Eirola %T Conservation of integrals and symplectic structure in the integration of differential equations by multistep methods. %J Numerische Mathematik %D 1992 %P 281-290 %V 61 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1992__61_3_133622/ %F NUMA_1992__61_3_133622