@article{MAT_1959_3_4_a3,
     author = {J. Diedonn\'e},
     title = {On biorthogonal systems},
     journal = {Matematika},
     pages = {133--146},
     year = {1959},
     volume = {3},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1959_3_4_a3/}
}