Mathematical Inequalities & Applications · Volume 7, Issue 1 On the stability of the functional equation f(x+y-xy)+xf(y)+yf(x)=f(x)+f(y) 07-09 Pages 79-85 DOI 10.7153/mia-07-09 Downloads Short PDF Full PDF PNG Authors Yong-Soo Jung Keywords functional equation stability. Subject classes 39B72 38B82 47H15