Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_138_3_a15, author = {P. L. Ul'yanov}, title = {Divergent series over a {Haar} system and over bases}, journal = {Doklady Akademii Nauk}, pages = {556--559}, publisher = {mathdoc}, volume = {138}, number = {3}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_3_a15/} }
P. L. Ul'yanov. Divergent series over a Haar system and over bases. Doklady Akademii Nauk, Tome 138 (1961) no. 3, pp. 556-559. http://geodesic.mathdoc.fr/item/DAN_1961_138_3_a15/