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@article{AM2_1976__14_136589, author = {John A. Baker}, title = {On the functional equation f(x) g(y) = p(x+y) q(x/y). {(Short} {Communication).}}, journal = {Aequationes mathematicae}, pages = {249--250}, publisher = {mathdoc}, volume = {14}, year = {1976}, zbl = {0326.39008}, url = {http://geodesic.mathdoc.fr/item/AM2_1976__14_136589/} }
John A. Baker. On the functional equation f(x) g(y) = p(x+y) q(x/y). (Short Communication).. Aequationes mathematicae, Tome 14 (1976), pp. 249-250. http://geodesic.mathdoc.fr/item/AM2_1976__14_136589/