@article{JNSA_2016_9_9_a3,
     author = {EL-Fassi, Iz-iddine and Kim, Gwang Hui},
     title = {Hyperstability of a quadratic functional equation on abelian group and inner product  spaces },
     journal = {Journal of nonlinear sciences and its applications},
     pages = {5353-5361},
     publisher = {mathdoc},
     volume = {9},
     number = {9},
     year = {2016},
     doi = {10.22436/jnsa.009.09.04},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.22436/jnsa.009.09.04/}
}