@article{MZ_1978__161_172708,
     author = {Glenn Schober},
     title = {A {Geometric} {Condition} for {Bounded} {Mean} {Oscillation.}},
     journal = {Mathematische Zeitschrift},
     pages = {291--292},
     publisher = {mathdoc},
     volume = {161},
     year = {1978},
     zbl = {0387.30020},
     url = {http://geodesic.mathdoc.fr/item/MZ_1978__161_172708/}
}