Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1980_152_a3, author = {N. A. Grigor'ev}, title = {Regular simplexes inscribed into a~cube and {Hadamard} matrices}, journal = {Informatics and Automation}, pages = {87--88}, publisher = {mathdoc}, volume = {152}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1980_152_a3/} }
N. A. Grigor'ev. Regular simplexes inscribed into a~cube and Hadamard matrices. Informatics and Automation, Geometry of positive quadratic forms, Tome 152 (1980), pp. 87-88. http://geodesic.mathdoc.fr/item/TRSPY_1980_152_a3/