%0 Journal Article %A EL-Fassi, Iz-iddine %A Kim, Gwang Hui %T Hyperstability of a quadratic functional equation on abelian group and inner product spaces %J Journal of nonlinear sciences and its applications %D 2016 %P 5353-5361 %V 9 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.009.09.04/ %R 10.22436/jnsa.009.09.04 %G en %F JNSA_2016_9_9_a3