@article{NUMA_1969__13_131935,
     author = {G.T. SYMM},
     title = {Conformal {Mapping} of {Doubly-Connected} {Domains.}},
     journal = {Numerische Mathematik},
     pages = {448--457},
     publisher = {mathdoc},
     volume = {13},
     year = {1969},
     zbl = {0174.20602},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1969__13_131935/}
}