@article{GDZPPN002037629,
title = {Regularity properties of functional equations and inequalities.},
journal = {Aequationes mathematicae},
volume = {38},
year = {1989},
pages = {233-251},
zbl = {0676.39007},
url = {http://dml.mathdoc.fr/item/GDZPPN002037629}
}
Grosse-Erdmann, Karl-Goswin. Regularity properties of functional equations and inequalities.. Aequationes mathematicae, Tome 38 (1989) pp. 233-251. http://gdmltest.u-ga.fr/item/GDZPPN002037629/