@article{GDZPPN002029022,
title = {On the functional equation f(x) = ...f((x+j)/k) over finite rings.},
journal = {Aequationes mathematicae},
volume = {13},
year = {1975},
pages = {229-232},
zbl = {0333.39008},
url = {http://dml.mathdoc.fr/item/GDZPPN002029022}
}
Shank, H.; Kairies, H.-H.; Dickey, L.J. On the functional equation f(x) = ...f((x+j)/k) over finite rings.. Aequationes mathematicae, Tome 13 (1975) pp. 229-232. http://gdmltest.u-ga.fr/item/GDZPPN002029022/