%0 Journal Article %A Ĺ eda, Valter %T On some non-linear boundary value problems for ordinary differential equations %J Archivum mathematicum %D 1989 %P 207-222 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1989__25_4_a3/ %G en %F ARM_1989__25_4_a3