@article{MZ_1923__18_167747,
     author = {Fr. Riesz},
     title = {\"Uber die {Bandwerte} einer analytischen {Funktion}},
     journal = {Mathematische Zeitschrift},
     pages = {87--95},
     publisher = {mathdoc},
     volume = {18},
     year = {1923},
     zbl = {49.0225.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1923__18_167747/}
}