@article{10_4153_CMB_2013_031_0,
     author = {Swanepoel, Konrad J.},
     title = {Equilateral {Sets} and a {Sch\"utte} {Theorem} forthe 4-norm},
     journal = {Canadian mathematical bulletin},
     pages = {640--647},
     year = {2014},
     volume = {57},
     number = {3},
     doi = {10.4153/CMB-2013-031-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2013-031-0/}
}