TY - JOUR AU - EL-Fassi, Iz-iddine AU - Kim, Gwang Hui TI - Hyperstability of a quadratic functional equation on abelian group and inner product spaces JO - Journal of nonlinear sciences and its applications PY - 2016 SP - 5353 EP - 5361 VL - 9 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.22436/jnsa.009.09.04/ DO - 10.22436/jnsa.009.09.04 LA - en ID - JNSA_2016_9_9_a3 ER -