@article{MZ_1973__131_171878,
     author = {L.R. Sons},
     title = {Gap {Series} with {Rapid} {Growth} in the {Unit} {Disc.}},
     journal = {Mathematische Zeitschrift},
     pages = {25--48},
     publisher = {mathdoc},
     volume = {131},
     year = {1973},
     zbl = {0241.30007},
     url = {http://geodesic.mathdoc.fr/item/MZ_1973__131_171878/}
}