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@article{AM2_1976__14_136562, author = {C.F.K. Jung and V. Boonyasombat}, title = {On the functional equation f(x +f(y)) = f(x)f(y).}, journal = {Aequationes mathematicae}, pages = {41--48}, publisher = {mathdoc}, volume = {14}, year = {1976}, zbl = {0322.39021}, url = {http://geodesic.mathdoc.fr/item/AM2_1976__14_136562/} }
C.F.K. Jung; V. Boonyasombat. On the functional equation f(x +f(y)) = f(x)f(y).. Aequationes mathematicae, Tome 14 (1976), pp. 41-48. http://geodesic.mathdoc.fr/item/AM2_1976__14_136562/