@article{AM2_1980__20_182390,
     author = {M. Kuczma and R. Graw},
     title = {Infinite discrete sets of limit points of iterative sequences of continuous functions. {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {117--118},
     publisher = {mathdoc},
     volume = {20},
     year = {1980},
     zbl = {0487.26002},
     url = {http://geodesic.mathdoc.fr/item/AM2_1980__20_182390/}
}