%0 Journal Article
%A Yang, Chen
%A Zhai, Chengbo
%T Uniqueness of positive solutions for a fractional differential equation via a fixed point theorem of a sum operator
%J Electronic Journal of Differential Equations
%D 2012
%V 2012
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a49/
%G en
%F EJDE_2012__2012__a49