@article{MAN_1979__244_163298,
     author = {Heinz Leutwiler},
     title = {Harmonie {Functions} of {Bounded} {Mean} {Oscillation.}},
     journal = {Mathematische Annalen},
     pages = {167--184},
     year = {1979},
     volume = {244},
     zbl = {0397.31008},
     url = {http://geodesic.mathdoc.fr/item/MAN_1979__244_163298/}
}