@article{JAC_1999__10_3_a0,
     author = {Sidelnikov, V.M.},
     title = {Spherical 7-designs in $2^n$-dimensional {Euclidean} space},
     journal = {Journal of Algebraic Combinatorics},
     pages = {279--288},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_1999__10_3_a0/}
}