@article{NUMA_1990__57_6-7_133467,
     author = {W. Gautschi and A. C\'ordova and ...},
     title = {Vandermonde {Matrices} on the {Circle:} {Spectral} {Properties} and {Conditioning.}},
     journal = {Numerische Mathematik},
     pages = {577--592},
     publisher = {mathdoc},
     volume = {57},
     number = {6-7},
     year = {1990},
     zbl = {0728.15003},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__57_6-7_133467/}
}