@article{1077475368,
author = {Pollard, Harry},
title = {The mean convergence of orthogonal series. III},
journal = {Duke Math. J.},
volume = {16},
number = {1},
year = {1949},
pages = { 189-191},
language = {en},
url = {http://dml.mathdoc.fr/item/1077475368}
}
Pollard, Harry. The mean convergence of orthogonal series. III. Duke Math. J., Tome 16 (1949) no. 1, pp. 189-191. http://gdmltest.u-ga.fr/item/1077475368/