@article{00806192,
title = {On the convergence and summability of series with respect to block-orthonormal systems.},
journal = {Georgian Mathematical Journal},
volume = {2},
year = {1995},
pages = {517-534},
doi = {10.1007/BF02259671},
zbl = {0947.42020},
language = {en},
url = {http://dml.mathdoc.fr/item/00806192}
}
Nadibaidze, G. On the convergence and summability of series with respect to block-orthonormal systems.. Georgian Mathematical Journal, Tome 2 (1995) pp. 517-534. doi : 10.1007/BF02259671. http://gdmltest.u-ga.fr/item/00806192/