@article{AM2_1971__6_136175,
     author = {CHARLES H. FRANKE},
     title = {Linearly {Reducible} {Difference} {Operators} {(Short} {Communication)}},
     journal = {Aequationes mathematicae},
     pages = {117--117},
     publisher = {mathdoc},
     volume = {6},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AM2_1971__6_136175/}
}