@article{EJDE_2008__2008__a67,
     author = {Chatzarakis,  George E. and Philos,  Christos G. and Stavroulakis,  Ioannis P.},
     title = {On the oscillation of the solutions to linear difference equations with variable delay},
     journal = {Electronic journal of differential equations},
     year = {2008},
     volume = {2008},
     zbl = {1165.39004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a67/}
}