%0 Journal Article %A Půža, Bedřich %T On effective criteria of solvability of the boundary value problems for ordinary differential equations of the $n$-th order %J Archivum mathematicum %D 1990 %P 173-179 %V 26 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1990__26_2-3_a14/ %G en %F ARM_1990__26_2-3_a14