@article{GDZPPN002307340, title = {On Biorthogonal Systems and Total Sequences of Functionals. II.}, journal = {Mathematische Annalen}, volume = {201}, year = {1973}, pages = {1-8}, zbl = {0233.46028}, url = {http://dml.mathdoc.fr/item/GDZPPN002307340} }
Singer, Ivan. On Biorthogonal Systems and Total Sequences of Functionals. II.. Mathematische Annalen, Tome 201 (1973) pp. 1-8. http://gdmltest.u-ga.fr/item/GDZPPN002307340/