@article{GDZPPN002028883,
title = {Uniqueness theorems for the representation ...(f(x)g(y) + h(y)).},
journal = {Aequationes mathematicae},
volume = {13},
year = {1975},
pages = {77-88},
zbl = {0316.39010},
url = {http://dml.mathdoc.fr/item/GDZPPN002028883}
}
Lundberg, Anders; Ng, Che Tat. Uniqueness theorems for the representation ...(f(x)g(y) + h(y)).. Aequationes mathematicae, Tome 13 (1975) pp. 77-88. http://gdmltest.u-ga.fr/item/GDZPPN002028883/