%0 Journal Article %A Graef, John R. %A Kong, Lingju %A Yang, Bo %T Positive solutions for third order multi-point singular boundary value problems %J Czechoslovak Mathematical Journal %D 2010 %P 173-182 %V 60 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2010__60_1_a14/ %G en %F CMJ_2010__60_1_a14