@article{01570587,
title = {Some oscillation and non-oscillation theorems for fourth order difference equations.},
journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
volume = {19},
year = {2000},
pages = {863-872},
zbl = {0982.39006},
language = {en},
url = {http://dml.mathdoc.fr/item/01570587}
}
Thandapani, E.; Arockiasamy, I.M. Some oscillation and non-oscillation theorems for fourth order difference equations.. Zeitschrift für Analysis und ihre Anwendungen, Tome 19 (2000) pp. 863-872. http://gdmltest.u-ga.fr/item/01570587/