@article{05224766,
title = {Hyers-Ulam stability of the generalized quadratic functional equation in amenable semigroup.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {8},
year = {2007},
zbl = {1146.39039},
language = {en},
url = {http://dml.mathdoc.fr/item/05224766}
}
Bouikhalene, Belaid; Elqorachi, Elhoucien; Redouani, Ahmed. Hyers-Ulam stability of the generalized quadratic functional equation in amenable semigroup.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 8 (2007) . http://gdmltest.u-ga.fr/item/05224766/