%0 Journal Article
%A A. El-Haffaf
%T Existence Theorems for a Fourth Order Boundary Value Problem
%J Bulletin of the Polish Academy of Sciences. Mathematics
%D 2009
%P 135-148
%V 57
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ba57-2-7/
%R 10.4064/ba57-2-7
%G en
%F 10_4064_ba57_2_7