@article{AM2_1975__12_136497,
     author = {H. Shank and H.-H. Kairies and L.J. Dickey},
     title = {On the {Functional} {Equation} f(x) = ...f((x+j)/k) {Over} {Finite} {Rings.} {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {116--117},
     publisher = {mathdoc},
     volume = {12},
     year = {1975},
     zbl = {0333.39008},
     url = {http://geodesic.mathdoc.fr/item/AM2_1975__12_136497/}
}