%0 Journal Article %A H.J. Pesch %A S. Miesbach %T Symplectic phase flow approximation for the numerical integration of canonical systems. %J Numerische Mathematik %D 1992 %P 501-522 %V 61 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1992__61_3_133635/ %F NUMA_1992__61_3_133635