@article{AM2_1985__28_137041,
     author = {Marek Cezary Zdun},
     title = {Regular fractional iterations.},
     journal = {Aequationes mathematicae},
     pages = {73--79},
     publisher = {mathdoc},
     volume = {28},
     year = {1985},
     zbl = {0559.39003},
     url = {http://geodesic.mathdoc.fr/item/AM2_1985__28_137041/}
}