@article{NUMA_1981__37_132732,
     author = {L.N. Trefethen},
     title = {Rational {Chebyshev} {Approximation} on the {Unit} {Disk.}},
     journal = {Numerische Mathematik},
     pages = {297--320},
     year = {1981},
     volume = {37},
     zbl = {0443.30046},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1981__37_132732/}
}