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@article{AM2_1971__6_136180, author = {ZOLT\'AN DAR\'OCZY}, title = {On the {General} {Solution} of the {Functional} {Equation} f(x + y}, journal = {Aequationes mathematicae}, pages = {130--132}, publisher = {mathdoc}, volume = {6}, year = {1971}, zbl = {0222.39003}, url = {http://geodesic.mathdoc.fr/item/AM2_1971__6_136180/} }
ZOLTÁN DARÓCZY. On the General Solution of the Functional Equation f(x + y. Aequationes mathematicae, Tome 6 (1971), pp. 130-132. http://geodesic.mathdoc.fr/item/AM2_1971__6_136180/