@article{01356395,
title = {A characterization of a two-weight inequality for discrete two-dimensional Hardy operators.},
journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
volume = {18},
year = {1999},
pages = {557-568},
zbl = {0935.26006},
language = {en},
url = {http://dml.mathdoc.fr/item/01356395}
}
Rakotondratsimba, Y. A characterization of a two-weight inequality for discrete two-dimensional Hardy operators.. Zeitschrift für Analysis und ihre Anwendungen, Tome 18 (1999) pp. 557-568. http://gdmltest.u-ga.fr/item/01356395/