Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1981_29_1_a7, author = {S. V. Konyagin}, title = {Systems of vectors in {Euclidean} space and an extremal problem for polynomials}, journal = {Matemati\v{c}eskie zametki}, pages = {63--74}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1981_29_1_a7/} }
S. V. Konyagin. Systems of vectors in Euclidean space and an extremal problem for polynomials. Matematičeskie zametki, Tome 29 (1981) no. 1, pp. 63-74. http://geodesic.mathdoc.fr/item/MZM_1981_29_1_a7/