@article{PIM_2003_N_S_73_87_a10,
     author = {Hark-Mahn Kim},
     title = {Hyers-ulam {Stability} of a {General} {Quadratic} {Functional} {Equation}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {129 },
     publisher = {mathdoc},
     volume = {_N_S_73},
     number = {87},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2003_N_S_73_87_a10/}
}