@article{AM2_1971__6_136181,
     author = {DONALD B. SMALL},
     title = {On the {Functional} {Equation} {F(u)} = {F(1} - n) + {F(...),} ...[0,...]},
     journal = {Aequationes mathematicae},
     pages = {133--140},
     publisher = {mathdoc},
     volume = {6},
     year = {1971},
     zbl = {0225.39002},
     url = {http://geodesic.mathdoc.fr/item/AM2_1971__6_136181/}
}