%0 Journal Article %A Goodrich, Christopher S. %T Existence of a positive solution to a nonlocal semipositone boundary value problem on a time scale %J Commentationes Mathematicae Universitatis Carolinae %D 2013 %P 509-525 %V 54 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2013__54_4_a4/ %G en %F CMUC_2013__54_4_a4