TY - JOUR AU - Vicent ̧iu D. R ̆adulescu AU - Ionela-Loredana St ̆ancut TI - Perturbation effects for a singular elliptic problem with lack of compactness and critical exponent JO - Minimax theory and its applications PY - 2017 VL - 2 IS - 1 UR - http://geodesic.mathdoc.fr/item/MTA_2017_2_1_a6/ ID - MTA_2017_2_1_a6 ER -