TY  - JOUR
AU  - Yang, Chen
AU  - Zhai, Chengbo
TI  - Uniqueness of positive solutions for a fractional differential equation via a fixed point theorem of a sum operator
JO  - Electronic Journal of Differential Equations
PY  - 2012
VL  - 2012
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a49/
LA  - en
ID  - EJDE_2012__2012__a49
ER  -