@article{00569406,
title = {A generalized formula of Hardy.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {17},
year = {1994},
pages = {369-378},
doi = {10.1155/S0161171294000517},
zbl = {0795.05012},
language = {en},
url = {http://dml.mathdoc.fr/item/00569406}
}
Campbell, Geoffrey B. A generalized formula of Hardy.. International Journal of Mathematics and Mathematical Sciences, Tome 17 (1994) pp. 369-378. doi : 10.1155/S0161171294000517. http://gdmltest.u-ga.fr/item/00569406/