%0 Journal Article %A Šenkyřík, Martin %T Method of lower and upper solutions for a third-order three-point regular boundary value problem %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 1992 %P 60-70 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_1992__31_1_a6/ %G en %F AUPO_1992__31_1_a6