@article{AM2_1977__15_136669,
     author = {F. Neuman},
     title = {On solutions of the vector functional equation y(...(x)) = f(x) * {A} * y(x). {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {314--315},
     publisher = {mathdoc},
     volume = {15},
     year = {1977},
     url = {http://geodesic.mathdoc.fr/item/AM2_1977__15_136669/}
}