@article{GDZPPN002031329, title = {Functional equations on restricted domains.}, journal = {Aequationes mathematicae}, volume = {18}, year = {1978}, pages = {1-34}, zbl = {0386.39002}, url = {http://dml.mathdoc.fr/item/GDZPPN002031329} }
Kuczma, Marek. Functional equations on restricted domains.. Aequationes mathematicae, Tome 18 (1978) pp. 1-34. http://gdmltest.u-ga.fr/item/GDZPPN002031329/