@article{GDZPPN002028182, title = {On the Functional Equation f(p + qx + rf(x)) = a + bx + cf(x).}, journal = {Aequationes mathematicae}, volume = {10}, year = {1974}, pages = {199-211}, zbl = {0289.39003}, url = {http://dml.mathdoc.fr/item/GDZPPN002028182} }
Nabeya, Seiji. On the Functional Equation f(p + qx + rf(x)) = a + bx + cf(x).. Aequationes mathematicae, Tome 10 (1974) pp. 199-211. http://gdmltest.u-ga.fr/item/GDZPPN002028182/