%0 Journal Article %A J.H. VERNER %T The Order of Some Implicit Runge-Kutta Methods. %J Numerische Mathematik %D 1969 %P 14-23 %V 13 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1969__13_131896/ %F NUMA_1969__13_131896