@article{00844417,
title = {Comparison and oscillation results for delay difference equations with oscillating coefficients.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {19},
year = {1996},
pages = {171-176},
doi = {10.1155/S0161171296000245},
zbl = {0840.39006},
language = {en},
url = {http://dml.mathdoc.fr/item/00844417}
}
Yan, Weiping; Yan, Jurang. Comparison and oscillation results for delay difference equations with oscillating coefficients.. International Journal of Mathematics and Mathematical Sciences, Tome 19 (1996) pp. 171-176. doi : 10.1155/S0161171296000245. http://gdmltest.u-ga.fr/item/00844417/