@article{GDZPPN002028115,
title = {On the Functional Equation f(x)g(y) = ...hi(aix + biy).},
journal = {Aequationes mathematicae},
volume = {10},
year = {1974},
pages = {154-162},
url = {http://dml.mathdoc.fr/item/GDZPPN002028115}
}
Baker, John A. On the Functional Equation f(x)g(y) = ...hi(aix + biy).. Aequationes mathematicae, Tome 10 (1974) pp. 154-162. http://gdmltest.u-ga.fr/item/GDZPPN002028115/