@article{05313172,
title = {On the stability of quadratic functional equations.},
journal = {Abstract and Applied Analysis},
volume = {2008},
year = {2008},
doi = {10.1155/2008/628178},
zbl = {1146.39045},
language = {en},
url = {http://dml.mathdoc.fr/item/05313172}
}
Lee, Jung Rye; An, Jong Su; Park, Choonkil. On the stability of quadratic functional equations.. Abstract and Applied Analysis, Tome 2008 (2008) . doi : 10.1155/2008/628178. http://gdmltest.u-ga.fr/item/05313172/