@article{10_4064_cm116_1_3,
     author = {S. Ponnusamy and A. Vasudevarao and M. Vuorinen},
     title = {Region of variability for
spiral-like functions with respect to a boundary point},
     journal = {Colloquium Mathematicum},
     pages = {31--46},
     publisher = {mathdoc},
     volume = {116},
     number = {1},
     year = {2009},
     doi = {10.4064/cm116-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm116-1-3/}
}