%0 Journal Article
%A Xia,  Li
%A Yao,  Zhengan
%T Positive solutions for a class of singular boundary-value problems
%J Electronic journal of differential equations
%D 2007
%V 2007
%U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a204/
%G en
%F EJDE_2007__2007__a204