@article{1028989861, author = {Dieudonn\'e, Jean}, title = {On biorthogonal systems.}, journal = {Michigan Math. J.}, volume = {2}, number = {1}, year = {1953}, pages = { 7-20}, language = {en}, url = {http://dml.mathdoc.fr/item/1028989861} }
Dieudonné, Jean. On biorthogonal systems.. Michigan Math. J., Tome 2 (1953) no. 1, pp. 7-20. http://gdmltest.u-ga.fr/item/1028989861/