@article{AM2_1982__25_136953,
     author = {H.W. Engl},
     title = {An analytic representation for selfmaps of a countably infinite set and its cycles. {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {115--115},
     publisher = {mathdoc},
     volume = {25},
     year = {1982},
     zbl = {0519.39006},
     url = {http://geodesic.mathdoc.fr/item/AM2_1982__25_136953/}
}