%0 Journal Article %A D. O'Regan %T Solvability of some singular and nonsingular nonlinear third order boundary value problems %J Annales Polonici Mathematici %D 1991 %P 183-194 %V 54 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-54-2-183-194/ %R 10.4064/ap-54-2-183-194 %G en %F 10_4064_ap_54_2_183_194