On a result of Olevskiǐ : a uniformly bounded orthonormal sequence is not a basis for C[0,1]
Séminaire Analyse fonctionnelle (dit "Maurey-Schwartz"), (1973-1974), Talk no. 21, 14 p.
@article{SAF_1973-1974____A23_0,
     author = {Pe\l czy\'nski, A.},
     title = {On a result of Olevski\v\i\ : a uniformly bounded orthonormal sequence is not a basis for $C[0,1]$},
     journal = {S\'eminaire Analyse fonctionnelle (dit "Maurey-Schwartz")},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1973-1974},
     note = {talk:21},
     zbl = {0298.46024},
     language = {en},
     url = {http://www.numdam.org/item/SAF_1973-1974____A23_0}
}
Pełczynski, A. On a result of Olevskiǐ : a uniformly bounded orthonormal sequence is not a basis for $C[0,1]$. Séminaire Analyse fonctionnelle (dit "Maurey-Schwartz"),  (1973-1974), Talk no. 21, 14 p. http://www.numdam.org/item/SAF_1973-1974____A23_0/