@article{GDZPPN00203431X,
title = {On systems of linear functional equations.},
journal = {Aequationes mathematicae},
volume = {26},
year = {1983},
pages = {64-73},
zbl = {0533.39005},
url = {http://dml.mathdoc.fr/item/GDZPPN00203431X}
}
Laird, P.G.; Mills, J. On systems of linear functional equations.. Aequationes mathematicae, Tome 26 (1983) pp. 64-73. http://gdmltest.u-ga.fr/item/GDZPPN00203431X/