@article{03840524,
title = {A Hille-Wintner type comparison theorem for second order difference equations.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {6},
year = {1983},
pages = {387-393},
doi = {10.1155/S0161171283000332},
zbl = {0529.39001},
language = {en},
url = {http://dml.mathdoc.fr/item/03840524}
}
Hooker, John W. A Hille-Wintner type comparison theorem for second order difference equations.. International Journal of Mathematics and Mathematical Sciences, Tome 6 (1983) pp. 387-393. doi : 10.1155/S0161171283000332. http://gdmltest.u-ga.fr/item/03840524/