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J. H. Bae and W. G. Park, On stability of a functional equation with n variables, Nonlinear Anal. TMA, 64(2006), 856-868.
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J. H. Bae and W. G. Park, On a cubic equation and a Jensen-quadratic equation, Abstarct Appl. Anal., 2007(2007), Article ID 45179.
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J. H. Bae and W. G. Park, A fixed point approach to the stability of a functional equation on quadratic forms, preprint.
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W. G. Park and J. H. Bae, On a Cauchy-Jensen functional equation and its stability, J. Math. Anal. Appl., 323(2006), 634-643.
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W. G. Park and J. H. Bae, A multidimensional functional equation having quadratic forms as solutions, J. Inequal. Appl., 2007(2007), Article ID 24716.
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W. G. Park and J. H. Bae, A functional equation related to quadratic forms without the cross product terms, Honam Math. J., 30(2008), 219-225.
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W. G. Park and J. H. Bae, A functional equation originating from elliptic curves, Abstract Appl. Anal., 2008(2008), Article ID 135237.
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