@article{10_4064_sm_9_1_139_155,
     author = {S. Banach},
     title = {Sur la divergence des s\'eries orthogonales},
     journal = {Studia Mathematica},
     pages = {139--155},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1940},
     doi = {10.4064/sm-9-1-139-155},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-9-1-139-155/}
}