@article{GDZPPN002474514, title = {Existence Theorems for Solutions of Functional Equations.}, journal = {Monatshefte f\"ur Mathematik}, volume = {68}, year = {1964}, pages = {368-374}, zbl = {0152.14304}, url = {http://dml.mathdoc.fr/item/GDZPPN002474514} }
Tauber, Selmo. Existence Theorems for Solutions of Functional Equations.. Monatshefte für Mathematik, Tome 68 (1964) pp. 368-374. http://gdmltest.u-ga.fr/item/GDZPPN002474514/