TY  - JOUR
AU  - Didenko, Andriy
AU  - Emamizadeh, Behrouz
TI  - A characterization of balls using the domain derivative
JO  - Electronic Journal of Differential Equations
PY  - 2006
VL  - 2006
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a51/
LA  - en
ID  - EJDE_2006__2006__a51
ER  -