%0 Journal Article %A J.R. Cash %T High Order P-Stable Formulae for the Numerical Integration of Periodic Initial Value Problems. %J Numerische Mathematik %D 1981 %P 355-370 %V 37 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1981__37_132737/ %F NUMA_1981__37_132737