@article {MATHEDUC.06515107,
author = {Stoica, George},
title = {Cauchy equation and countable sets. (Ecua\c{t}ia lui Cauchy \c{s}i mul\c{t}imi num\u{a}rabile.)},
year = {2014},
journal = {Gazeta Matematic\u{a}. Seria B},
volume = {119},
number = {11},
issn = {1584-9333},
pages = {497-499},
publisher = {Romanian Mathematical Society (Societatea de \c{S}tiin\c{t}e Matematice din Rom\^ania), Bucharest},
abstract = {Summary: We prove that the functions satisfying Cauchy's functional equation outside a countable set $N\subset\bbfR$ can be obtained by redefining, in an arbitrary manner on $N$, the functions satisfying Cauchy's functional equation everywhere on $\bbfR$.},
msc2010 = {I20xx},
identifier = {2016a.00781},
}