Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1974_15_2_a19, author = {S. V. Zotikov}, title = {Cross products of complete orthonormal systems of functions}, journal = {Matemati\v{c}eskie zametki}, pages = {331--340}, publisher = {mathdoc}, volume = {15}, number = {2}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1974_15_2_a19/} }
S. V. Zotikov. Cross products of complete orthonormal systems of functions. Matematičeskie zametki, Tome 15 (1974) no. 2, pp. 331-340. http://geodesic.mathdoc.fr/item/MZM_1974_15_2_a19/