TY - JOUR AU - Haoua, Rabah AU - Medeghri, Ahmed TI - Robin boundary value problems for elliptic operational differential equations with variable coefficients JO - Electronic Journal of Differential Equations PY - 2015 VL - 2015 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a89/ LA - en ID - EJDE_2015__2015__a89 ER -