@article{05690914, title = {The stability of a quadratic functional equation with the fixed point alternative.}, journal = {Abstract and Applied Analysis}, volume = {2009}, year = {2009}, doi = {10.1155/2009/907167}, zbl = {1189.39031}, language = {en}, url = {http://dml.mathdoc.fr/item/05690914} }
Park, Choonkil; Kim, Ji-Hye. The stability of a quadratic functional equation with the fixed point alternative.. Abstract and Applied Analysis, Tome 2009 (2009) . doi : 10.1155/2009/907167. http://gdmltest.u-ga.fr/item/05690914/