%0 Journal Article %A E. Görlich %A D. Pontzen %T Alpha Well-Posedness, Alpha Stability, and the Matrix Theorems of H.-O. Kreiss. %J Numerische Mathematik %D 1985 %P 131-146 %V 46 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1985__46_132987/ %F NUMA_1985__46_132987