@article{NUMA_1980__35_186285,
     author = {G. Opfer},
     title = {Conformal {Mappings} onto {Prescribed} {Regions} via {Optimization} {Techniques.}},
     journal = {Numerische Mathematik},
     pages = {189--200},
     publisher = {mathdoc},
     volume = {35},
     year = {1980},
     zbl = {0417.30012},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1980__35_186285/}
}