TY - JOUR AU - Marino Zennaro TI - Natural Runge-Kutta and Projection Methods. JO - Numerische Mathematik PY - 1988 SP - 423 EP - 438 VL - 53 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1988__53_1-2_133284/ ID - NUMA_1988__53_1-2_133284 ER -