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@article{AM2_1974__11_136460, author = {Seiji Nabeya}, title = {On the {Functional} {Equation} f(p + qx + rf(x)) = a + bx + cf(x).}, journal = {Aequationes mathematicae}, pages = {199--211}, publisher = {mathdoc}, volume = {11}, year = {1974}, zbl = {0289.39003}, url = {http://geodesic.mathdoc.fr/item/AM2_1974__11_136460/} }
Seiji Nabeya. On the Functional Equation f(p + qx + rf(x)) = a + bx + cf(x).. Aequationes mathematicae, Tome 11 (1974), pp. 199-211. http://geodesic.mathdoc.fr/item/AM2_1974__11_136460/