@article{10_1155_S0161171296000245,
     author = {Yan, Weiping and Yan, Jurang},
     title = {Comparison and oscillation results for delay difference equations with oscillating coefficients.},
     journal = {International Journal of Mathematics and Mathematical Sciences},
     pages = {171},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1996},
     doi = {10.1155/S0161171296000245},
     zbl = {0840.39006},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1155/S0161171296000245/}
}