%0 Journal Article %A A.K. Aziz %A M. Schneider %A R. Lemmert %T A finite element method for the nonlinera Tricomi problem. %J Numerische Mathematik %D 1990 %P 95-108 %V 58 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133489/ %F NUMA_1990__58_5_133489