%0 Journal Article
%A Lü, Haishen
%A O'Regan, Donal
%A Agarwal, Ravi P.
%T Existence to singular boundary value problems with sign changing nonlinearities using an approximation method approach
%J Applications of Mathematics
%D 2007
%P 117-135
%V 52
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1007/s10492-007-0006-5/
%R 10.1007/s10492-007-0006-5
%G en
%F 10_1007_s10492_007_0006_5