@article{MS2_1979__44_166652,
     author = {F.W. Carroll},
     title = {A strongly annular function with countably many singular values.},
     journal = {Mathematica Scandinavica},
     pages = {330--334},
     publisher = {mathdoc},
     volume = {44},
     year = {1979},
     zbl = {0428.30019},
     url = {http://geodesic.mathdoc.fr/item/MS2_1979__44_166652/}
}