TY - JOUR AU - Bouchekif, Mohammed AU - Matallah, Atika TI - Singular elliptic equations involving a concave term and critical Caffarelli-Kohn-Nirenberg exponent with sign-changing weight functions JO - Electronic Journal of Differential Equations PY - 2010 VL - 2010 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a21/ LA - en ID - EJDE_2010__2010__a21 ER -