@article{MAN_1981__256_163496,
     author = {Ch. Pommerenke},
     title = {On {Ergodic} {Properties} of {Inner} {Functions.}},
     journal = {Mathematische Annalen},
     pages = {43--50},
     year = {1981},
     volume = {256},
     zbl = {0439.30021},
     url = {http://geodesic.mathdoc.fr/item/MAN_1981__256_163496/}
}