@article{10_4153_CMB_1975_089_5,
     author = {Braess, Dietrich},
     title = {An {N-Parameter} {Chebyshev} {Set} which is not a {Sun}},
     journal = {Canadian mathematical bulletin},
     pages = {489--492},
     year = {1975},
     volume = {18},
     number = {4},
     doi = {10.4153/CMB-1975-089-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-089-5/}
}