@article{EJDE_2009__2009__a9,
     author = {Anderson, Douglas R.},
     title = {Oscillation and nonoscillation criteria for two-dimensional time-scale systems of first-order nonlinear dynamic equations},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2009},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a9/}
}