@article{AM2_1974__11_136471,
     author = {Hans-Joachim Kornstaedt},
     title = {Funktionalungleichungen und {Iterationsverfahren.} {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {317--318},
     publisher = {mathdoc},
     volume = {11},
     year = {1974},
     url = {http://geodesic.mathdoc.fr/item/AM2_1974__11_136471/}
}