@article{JRAM_1986__367_152830,
     author = {Ch. Pommerenke and D. Gnuschke-Hauschild},
     title = {On {Bloch} functions and gap series.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {172--186},
     publisher = {mathdoc},
     volume = {367},
     year = {1986},
     zbl = {0576.30027},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1986__367_152830/}
}