@article{JDM_1925__33_145695,
     author = {Hubert Cremer},
     title = {\"Uber die {Iteration} rationaler {Funktionen.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {185--209},
     publisher = {mathdoc},
     volume = {33},
     year = {1925},
     zbl = {51.0262.05},
     url = {http://geodesic.mathdoc.fr/item/JDM_1925__33_145695/}
}