Sun-Sook Jin, Yang-Hi Lee
      Generalized Hyers-Ulam stability of a 3-dimensional quadratic functional equation
      International Journal of Mathematical Analysis, Vol. 10, 2016, no. 15, 719-728
      http://dx.doi.org/10.12988/ijma.2016.6346

Copyright © 2016 Sun-Sook Jin and Yang-Hi Lee. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.