@article{paperid:1037804, author = {A. Fosner and R. Ger and A. Gilanyi and Sal Moslehian, Mohammad}, title = {On linear functional equations and completeness of normed spaces}, journal = {Banach Journal of Mathematical Analysis}, year = {2013}, volume = {7}, number = {1}, month = {June}, issn = {1735-8787}, pages = {196--200}, numpages = {4}, keywords = {Hyers--Ulam stability; normed space; completeness; Banach space}, }