@article{MZ_1979__166_172815,
     author = {Linda R. Sons},
     title = {Gap {Series} and {Normal} {Functions.}},
     journal = {Mathematische Zeitschrift},
     pages = {93--102},
     publisher = {mathdoc},
     volume = {166},
     year = {1979},
     zbl = {0378.30004},
     url = {http://geodesic.mathdoc.fr/item/MZ_1979__166_172815/}
}