%0 Journal Article %T Approximate pexiderized gamma-beta type functions %A Young W Lee %J Journal of Inequalities and Applications %D 2013 %I %R 10.1186/1029-242X-2013-14 %X MSC: 39B72, 38B22, 39B82. %K functional equation %K stability %K superstability %K gamma and beta functional equation %K Cauchy functional equation %K exponential functional equation %U http://www.journalofinequalitiesandapplications.com/content/2013/1/14/abstract