@article{ARM_2011__47_2_a4,
     author = {Saadati, Reza and Sadeghi, Ghadir},
     title = {Nonlinear stability of a quadratic functional equation with complex involution},
     journal = {Archivum mathematicum},
     pages = {111--117},
     publisher = {mathdoc},
     volume = {47},
     number = {2},
     year = {2011},
     mrnumber = {2813537},
     zbl = {1249.39031},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2011__47_2_a4/}
}