@article{01583199, title = {A characterization of derivations by functional equations.}, journal = {Mathematica Pannonica}, volume = {11}, year = {2000}, pages = {187-190}, zbl = {0964.39023}, language = {en}, url = {http://dml.mathdoc.fr/item/01583199} }
Halter-Koch, Franz. A characterization of derivations by functional equations.. Mathematica Pannonica, Tome 11 (2000) pp. 187-190. http://gdmltest.u-ga.fr/item/01583199/