%0 Journal Article %A RegiƄska, Teresa %T Error estimates for external approximation of ordinary differential equations and the superconvergence property %J Applications of Mathematics %D 1988 %P 277-290 %V 33 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1988.104309/ %R 10.21136/AM.1988.104309 %G en %F 10_21136_AM_1988_104309